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Finding the Fourth Proportional to 123,607.96, 170,557.85 and 69,891.80

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Solution

The fourth proportional to 123,607.96, 170,557.85 and 69,891.80 is: 96,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,607.96 : 170,557.85 = 69,891.80 : x
  2. Step 2: Convert to fraction form
    123,607.96/170,557.85 = 69,891.80/x
  3. Step 3: Cross multiply
    123,607.96x = 170,557.85 × 69,891.80
  4. Step 4: Simplify right side
    123,607.96x = 11,920,594,462.57
  5. Step 5: Solve for x
    x = 11,920,594,462.57/123,607.96
  6. Step 6: Final answer
    x = 96,438.73

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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.