Home / 123,387.57-170,274.76-66,798.95

Finding the Fourth Proportional to 123,387.57, 170,274.76 and 66,798.95

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Solution

The fourth proportional to 123,387.57, 170,274.76 and 66,798.95 is: 92,182.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,387.57 : 170,274.76 = 66,798.95 : x
  2. Step 2: Convert to fraction form
    123,387.57/170,274.76 = 66,798.95/x
  3. Step 3: Cross multiply
    123,387.57x = 170,274.76 × 66,798.95
  4. Step 4: Simplify right side
    123,387.57x = 11,374,174,161.13
  5. Step 5: Solve for x
    x = 11,374,174,161.13/123,387.57
  6. Step 6: Final answer
    x = 92,182.50

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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.