Home / 125,525.72-173,221.38-89,775.56

Finding the Fourth Proportional to 125,525.72, 173,221.38 and 89,775.56

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Solution

The fourth proportional to 125,525.72, 173,221.38 and 89,775.56 is: 123,887.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,525.72 : 173,221.38 = 89,775.56 : x
  2. Step 2: Convert to fraction form
    125,525.72/173,221.38 = 89,775.56/x
  3. Step 3: Cross multiply
    125,525.72x = 173,221.38 × 89,775.56
  4. Step 4: Simplify right side
    125,525.72x = 15,551,045,527.37
  5. Step 5: Solve for x
    x = 15,551,045,527.37/125,525.72
  6. Step 6: Final answer
    x = 123,887.33

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.