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Finding the Fourth Proportional to 123,125.63, 169,903.19 and 69,423.85

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Solution

The fourth proportional to 123,125.63, 169,903.19 and 69,423.85 is: 95,799.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,125.63 : 169,903.19 = 69,423.85 : x
  2. Step 2: Convert to fraction form
    123,125.63/169,903.19 = 69,423.85/x
  3. Step 3: Cross multiply
    123,125.63x = 169,903.19 × 69,423.85
  4. Step 4: Simplify right side
    123,125.63x = 11,795,332,380.45
  5. Step 5: Solve for x
    x = 11,795,332,380.45/123,125.63
  6. Step 6: Final answer
    x = 95,799.16

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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.