Home / 261,434.46-392,110.68-71,909.04

Finding the Fourth Proportional to 261,434.46, 392,110.68 and 71,909.04

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Solution

The fourth proportional to 261,434.46, 392,110.68 and 71,909.04 is: 107,852.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,434.46 : 392,110.68 = 71,909.04 : x
  2. Step 2: Convert to fraction form
    261,434.46/392,110.68 = 71,909.04/x
  3. Step 3: Cross multiply
    261,434.46x = 392,110.68 × 71,909.04
  4. Step 4: Simplify right side
    261,434.46x = 28,196,302,572.55
  5. Step 5: Solve for x
    x = 28,196,302,572.55/261,434.46
  6. Step 6: Final answer
    x = 107,852.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.