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Finding the Fourth Proportional to 101,761.95, 152,618.04 and 79,520.16

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Solution

The fourth proportional to 101,761.95, 152,618.04 and 79,520.16 is: 119,260.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,761.95 : 152,618.04 = 79,520.16 : x
  2. Step 2: Convert to fraction form
    101,761.95/152,618.04 = 79,520.16/x
  3. Step 3: Cross multiply
    101,761.95x = 152,618.04 × 79,520.16
  4. Step 4: Simplify right side
    101,761.95x = 12,136,210,959.69
  5. Step 5: Solve for x
    x = 12,136,210,959.69/101,761.95
  6. Step 6: Final answer
    x = 119,260.79

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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.