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Finding the Fourth Proportional to 118,433.80, 177,593.10 and 65,787.40

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Solution

The fourth proportional to 118,433.80, 177,593.10 and 65,787.40 is: 98,649.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,433.80 : 177,593.10 = 65,787.40 : x
  2. Step 2: Convert to fraction form
    118,433.80/177,593.10 = 65,787.40/x
  3. Step 3: Cross multiply
    118,433.80x = 177,593.10 × 65,787.40
  4. Step 4: Simplify right side
    118,433.80x = 11,683,388,306.94
  5. Step 5: Solve for x
    x = 11,683,388,306.94/118,433.80
  6. Step 6: Final answer
    x = 98,649.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.