Home / 124,854.50-172,259.96-76,405.92

Finding the Fourth Proportional to 124,854.50, 172,259.96 and 76,405.92

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Solution

The fourth proportional to 124,854.50, 172,259.96 and 76,405.92 is: 105,416.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,854.50 : 172,259.96 = 76,405.92 : x
  2. Step 2: Convert to fraction form
    124,854.50/172,259.96 = 76,405.92/x
  3. Step 3: Cross multiply
    124,854.50x = 172,259.96 × 76,405.92
  4. Step 4: Simplify right side
    124,854.50x = 13,161,680,663.92
  5. Step 5: Solve for x
    x = 13,161,680,663.92/124,854.50
  6. Step 6: Final answer
    x = 105,416.15

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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.