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Finding the Fourth Proportional to 123,163.70, 169,733.66 and 89,114.54

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Solution

The fourth proportional to 123,163.70, 169,733.66 and 89,114.54 is: 122,810.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,163.70 : 169,733.66 = 89,114.54 : x
  2. Step 2: Convert to fraction form
    123,163.70/169,733.66 = 89,114.54/x
  3. Step 3: Cross multiply
    123,163.70x = 169,733.66 × 89,114.54
  4. Step 4: Simplify right side
    123,163.70x = 15,125,737,033.42
  5. Step 5: Solve for x
    x = 15,125,737,033.42/123,163.70
  6. Step 6: Final answer
    x = 122,810.02

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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.