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Finding the Fourth Proportional to 103,737.25, 155,606.01 and 28,857.43

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Solution

The fourth proportional to 103,737.25, 155,606.01 and 28,857.43 is: 43,286.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,737.25 : 155,606.01 = 28,857.43 : x
  2. Step 2: Convert to fraction form
    103,737.25/155,606.01 = 28,857.43/x
  3. Step 3: Cross multiply
    103,737.25x = 155,606.01 × 28,857.43
  4. Step 4: Simplify right side
    103,737.25x = 4,490,389,541.15
  5. Step 5: Solve for x
    x = 4,490,389,541.15/103,737.25
  6. Step 6: Final answer
    x = 43,286.18

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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.