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Finding the Fourth Proportional to 137,737.73, 206,606.23 and 77,739.01

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Solution

The fourth proportional to 137,737.73, 206,606.23 and 77,739.01 is: 116,608.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,737.73 : 206,606.23 = 77,739.01 : x
  2. Step 2: Convert to fraction form
    137,737.73/206,606.23 = 77,739.01/x
  3. Step 3: Cross multiply
    137,737.73x = 206,606.23 × 77,739.01
  4. Step 4: Simplify right side
    137,737.73x = 16,061,363,069.17
  5. Step 5: Solve for x
    x = 16,061,363,069.17/137,737.73
  6. Step 6: Final answer
    x = 116,608.30

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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.