Home / 125,619.12-173,351.34-71,900.73

Finding the Fourth Proportional to 125,619.12, 173,351.34 and 71,900.73

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Solution

The fourth proportional to 125,619.12, 173,351.34 and 71,900.73 is: 99,221.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,619.12 : 173,351.34 = 71,900.73 : x
  2. Step 2: Convert to fraction form
    125,619.12/173,351.34 = 71,900.73/x
  3. Step 3: Cross multiply
    125,619.12x = 173,351.34 × 71,900.73
  4. Step 4: Simplify right side
    125,619.12x = 12,464,087,892.48
  5. Step 5: Solve for x
    x = 12,464,087,892.48/125,619.12
  6. Step 6: Final answer
    x = 99,221.26

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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.