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Finding the Fourth Proportional to 123,679.25, 170,677.41 and 69,963.12

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Solution

The fourth proportional to 123,679.25, 170,677.41 and 69,963.12 is: 96,549.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,679.25 : 170,677.41 = 69,963.12 : x
  2. Step 2: Convert to fraction form
    123,679.25/170,677.41 = 69,963.12/x
  3. Step 3: Cross multiply
    123,679.25x = 170,677.41 × 69,963.12
  4. Step 4: Simplify right side
    123,679.25x = 11,941,124,117.12
  5. Step 5: Solve for x
    x = 11,941,124,117.12/123,679.25
  6. Step 6: Final answer
    x = 96,549.13

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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.