Home / 200,046.60-299,545.02-129,712.68

Finding the Fourth Proportional to 200,046.60, 299,545.02 and 129,712.68

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Solution

The fourth proportional to 200,046.60, 299,545.02 and 129,712.68 is: 194,228.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,046.60 : 299,545.02 = 129,712.68 : x
  2. Step 2: Convert to fraction form
    200,046.60/299,545.02 = 129,712.68/x
  3. Step 3: Cross multiply
    200,046.60x = 299,545.02 × 129,712.68
  4. Step 4: Simplify right side
    200,046.60x = 38,854,787,324.85
  5. Step 5: Solve for x
    x = 38,854,787,324.85/200,046.60
  6. Step 6: Final answer
    x = 194,228.68

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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.