Home / 120,412.45-166,153.44-69,427.09

Finding the Fourth Proportional to 120,412.45, 166,153.44 and 69,427.09

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Solution

The fourth proportional to 120,412.45, 166,153.44 and 69,427.09 is: 95,800.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,412.45 : 166,153.44 = 69,427.09 : x
  2. Step 2: Convert to fraction form
    120,412.45/166,153.44 = 69,427.09/x
  3. Step 3: Cross multiply
    120,412.45x = 166,153.44 × 69,427.09
  4. Step 4: Simplify right side
    120,412.45x = 11,535,549,832.69
  5. Step 5: Solve for x
    x = 11,535,549,832.69/120,412.45
  6. Step 6: Final answer
    x = 95,800.31

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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.