Home / 125,487.68-173,123.61-71,743.82

Finding the Fourth Proportional to 125,487.68, 173,123.61 and 71,743.82

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Solution

The fourth proportional to 125,487.68, 173,123.61 and 71,743.82 is: 98,978.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,487.68 : 173,123.61 = 71,743.82 : x
  2. Step 2: Convert to fraction form
    125,487.68/173,123.61 = 71,743.82/x
  3. Step 3: Cross multiply
    125,487.68x = 173,123.61 × 71,743.82
  4. Step 4: Simplify right side
    125,487.68x = 12,420,549,113.59
  5. Step 5: Solve for x
    x = 12,420,549,113.59/125,487.68
  6. Step 6: Final answer
    x = 98,978.24

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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.