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Finding the Fourth Proportional to 101,599.72, 140,207.76 and 60,790.30

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Solution

The fourth proportional to 101,599.72, 140,207.76 and 60,790.30 is: 83,890.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,599.72 : 140,207.76 = 60,790.30 : x
  2. Step 2: Convert to fraction form
    101,599.72/140,207.76 = 60,790.30/x
  3. Step 3: Cross multiply
    101,599.72x = 140,207.76 × 60,790.30
  4. Step 4: Simplify right side
    101,599.72x = 8,523,270,787.74
  5. Step 5: Solve for x
    x = 8,523,270,787.74/101,599.72
  6. Step 6: Final answer
    x = 83,890.70

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1.5x scale

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.