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Finding the Fourth Proportional to 123,354.93, 170,233.93 and 75,599.05

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Solution

The fourth proportional to 123,354.93, 170,233.93 and 75,599.05 is: 104,329.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,354.93 : 170,233.93 = 75,599.05 : x
  2. Step 2: Convert to fraction form
    123,354.93/170,233.93 = 75,599.05/x
  3. Step 3: Cross multiply
    123,354.93x = 170,233.93 × 75,599.05
  4. Step 4: Simplify right side
    123,354.93x = 12,869,523,385.77
  5. Step 5: Solve for x
    x = 12,869,523,385.77/123,354.93
  6. Step 6: Final answer
    x = 104,329.22

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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.