Home / 424,016.18-636,021.02-108,472.58

Finding the Fourth Proportional to 424,016.18, 636,021.02 and 108,472.58

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Solution

The fourth proportional to 424,016.18, 636,021.02 and 108,472.58 is: 162,708.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,016.18 : 636,021.02 = 108,472.58 : x
  2. Step 2: Convert to fraction form
    424,016.18/636,021.02 = 108,472.58/x
  3. Step 3: Cross multiply
    424,016.18x = 636,021.02 × 108,472.58
  4. Step 4: Simplify right side
    424,016.18x = 68,990,840,973.63
  5. Step 5: Solve for x
    x = 68,990,840,973.63/424,016.18
  6. Step 6: Final answer
    x = 162,708.04

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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.