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Finding the Fourth Proportional to 180,545.47, 249,160.47 and 99,972.91

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Solution

The fourth proportional to 180,545.47, 249,160.47 and 99,972.91 is: 137,966.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,545.47 : 249,160.47 = 99,972.91 : x
  2. Step 2: Convert to fraction form
    180,545.47/249,160.47 = 99,972.91/x
  3. Step 3: Cross multiply
    180,545.47x = 249,160.47 × 99,972.91
  4. Step 4: Simplify right side
    180,545.47x = 24,909,297,242.87
  5. Step 5: Solve for x
    x = 24,909,297,242.87/180,545.47
  6. Step 6: Final answer
    x = 137,966.89

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1.5x scale

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.