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Finding the Fourth Proportional to 123,685.75, 170,686.67 and 67,097.13

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Solution

The fourth proportional to 123,685.75, 170,686.67 and 67,097.13 is: 92,594.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,685.75 : 170,686.67 = 67,097.13 : x
  2. Step 2: Convert to fraction form
    123,685.75/170,686.67 = 67,097.13/x
  3. Step 3: Cross multiply
    123,685.75x = 170,686.67 × 67,097.13
  4. Step 4: Simplify right side
    123,685.75x = 11,452,584,710.70
  5. Step 5: Solve for x
    x = 11,452,584,710.70/123,685.75
  6. Step 6: Final answer
    x = 92,594.21

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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.