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Finding the Fourth Proportional to 148,497, 204,925.90 and 81,430.44

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Solution

The fourth proportional to 148,497, 204,925.90 and 81,430.44 is: 112,374.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,497 : 204,925.90 = 81,430.44 : x
  2. Step 2: Convert to fraction form
    148,497/204,925.90 = 81,430.44/x
  3. Step 3: Cross multiply
    148,497x = 204,925.90 × 81,430.44
  4. Step 4: Simplify right side
    148,497x = 16,687,206,204.40
  5. Step 5: Solve for x
    x = 16,687,206,204.40/148,497
  6. Step 6: Final answer
    x = 112,374.03

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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.