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Finding the Fourth Proportional to 77,737.71, 116,606.17 and 67,175.64

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Solution

The fourth proportional to 77,737.71, 116,606.17 and 67,175.64 is: 100,763.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,737.71 : 116,606.17 = 67,175.64 : x
  2. Step 2: Convert to fraction form
    77,737.71/116,606.17 = 67,175.64/x
  3. Step 3: Cross multiply
    77,737.71x = 116,606.17 × 67,175.64
  4. Step 4: Simplify right side
    77,737.71x = 7,833,094,251.18
  5. Step 5: Solve for x
    x = 7,833,094,251.18/77,737.71
  6. Step 6: Final answer
    x = 100,763.12

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1.5x scale

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.