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Finding the Fourth Proportional to 113,342.80, 169,868.40 and 68,922.40

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Solution

The fourth proportional to 113,342.80, 169,868.40 and 68,922.40 is: 103,294.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,342.80 : 169,868.40 = 68,922.40 : x
  2. Step 2: Convert to fraction form
    113,342.80/169,868.40 = 68,922.40/x
  3. Step 3: Cross multiply
    113,342.80x = 169,868.40 × 68,922.40
  4. Step 4: Simplify right side
    113,342.80x = 11,707,737,812.16
  5. Step 5: Solve for x
    x = 11,707,737,812.16/113,342.80
  6. Step 6: Final answer
    x = 103,294.94

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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.