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Finding the Fourth Proportional to 148,354.53, 204,729.47 and 87,954.75

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Solution

The fourth proportional to 148,354.53, 204,729.47 and 87,954.75 is: 121,377.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,354.53 : 204,729.47 = 87,954.75 : x
  2. Step 2: Convert to fraction form
    148,354.53/204,729.47 = 87,954.75/x
  3. Step 3: Cross multiply
    148,354.53x = 204,729.47 × 87,954.75
  4. Step 4: Simplify right side
    148,354.53x = 18,006,928,911.71
  5. Step 5: Solve for x
    x = 18,006,928,911.71/148,354.53
  6. Step 6: Final answer
    x = 121,377.68

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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.