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Finding the Fourth Proportional to 118,371.92, 163,349.10 and 67,380.80

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Solution

The fourth proportional to 118,371.92, 163,349.10 and 67,380.80 is: 92,983.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,371.92 : 163,349.10 = 67,380.80 : x
  2. Step 2: Convert to fraction form
    118,371.92/163,349.10 = 67,380.80/x
  3. Step 3: Cross multiply
    118,371.92x = 163,349.10 × 67,380.80
  4. Step 4: Simplify right side
    118,371.92x = 11,006,592,220.53
  5. Step 5: Solve for x
    x = 11,006,592,220.53/118,371.92
  6. Step 6: Final answer
    x = 92,983.14

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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.