Home / 125,486.28-173,159.55-74,490.30

Finding the Fourth Proportional to 125,486.28, 173,159.55 and 74,490.30

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Solution

The fourth proportional to 125,486.28, 173,159.55 and 74,490.30 is: 102,789.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,486.28 : 173,159.55 = 74,490.30 : x
  2. Step 2: Convert to fraction form
    125,486.28/173,159.55 = 74,490.30/x
  3. Step 3: Cross multiply
    125,486.28x = 173,159.55 × 74,490.30
  4. Step 4: Simplify right side
    125,486.28x = 12,898,706,827.37
  5. Step 5: Solve for x
    x = 12,898,706,827.37/125,486.28
  6. Step 6: Final answer
    x = 102,789.78

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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.