Home / 123,748.12-170,772.49-67,159.49

Finding the Fourth Proportional to 123,748.12, 170,772.49 and 67,159.49

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Solution

The fourth proportional to 123,748.12, 170,772.49 and 67,159.49 is: 92,680.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,748.12 : 170,772.49 = 67,159.49 : x
  2. Step 2: Convert to fraction form
    123,748.12/170,772.49 = 67,159.49/x
  3. Step 3: Cross multiply
    123,748.12x = 170,772.49 × 67,159.49
  4. Step 4: Simplify right side
    123,748.12x = 11,468,993,334.43
  5. Step 5: Solve for x
    x = 11,468,993,334.43/123,748.12
  6. Step 6: Final answer
    x = 92,680.14

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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.