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Finding the Fourth Proportional to 137,737.10, 206,569.20 and 42,967.10

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Solution

The fourth proportional to 137,737.10, 206,569.20 and 42,967.10 is: 64,439.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,737.10 : 206,569.20 = 42,967.10 : x
  2. Step 2: Convert to fraction form
    137,737.10/206,569.20 = 42,967.10/x
  3. Step 3: Cross multiply
    137,737.10x = 206,569.20 × 42,967.10
  4. Step 4: Simplify right side
    137,737.10x = 8,875,679,473.32
  5. Step 5: Solve for x
    x = 8,875,679,473.32/137,737.10
  6. Step 6: Final answer
    x = 64,439.28

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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.