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Finding the Fourth Proportional to 180,484.38, 249,065.46 and 99,910.20

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Solution

The fourth proportional to 180,484.38, 249,065.46 and 99,910.20 is: 137,874.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,484.38 : 249,065.46 = 99,910.20 : x
  2. Step 2: Convert to fraction form
    180,484.38/249,065.46 = 99,910.20/x
  3. Step 3: Cross multiply
    180,484.38x = 249,065.46 × 99,910.20
  4. Step 4: Simplify right side
    180,484.38x = 24,884,179,921.69
  5. Step 5: Solve for x
    x = 24,884,179,921.69/180,484.38
  6. Step 6: Final answer
    x = 137,874.42

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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.