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Finding the Fourth Proportional to 101,659.50, 140,294.88 and 61,372.35

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Solution

The fourth proportional to 101,659.50, 140,294.88 and 61,372.35 is: 84,696.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,659.50 : 140,294.88 = 61,372.35 : x
  2. Step 2: Convert to fraction form
    101,659.50/140,294.88 = 61,372.35/x
  3. Step 3: Cross multiply
    101,659.50x = 140,294.88 × 61,372.35
  4. Step 4: Simplify right side
    101,659.50x = 8,610,226,478.57
  5. Step 5: Solve for x
    x = 8,610,226,478.57/101,659.50
  6. Step 6: Final answer
    x = 84,696.72

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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.