Home / 123,352.14-170,229.27-74,937.60

Finding the Fourth Proportional to 123,352.14, 170,229.27 and 74,937.60

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Solution

The fourth proportional to 123,352.14, 170,229.27 and 74,937.60 is: 103,415.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,352.14 : 170,229.27 = 74,937.60 : x
  2. Step 2: Convert to fraction form
    123,352.14/170,229.27 = 74,937.60/x
  3. Step 3: Cross multiply
    123,352.14x = 170,229.27 × 74,937.60
  4. Step 4: Simplify right side
    123,352.14x = 12,756,572,943.55
  5. Step 5: Solve for x
    x = 12,756,572,943.55/123,352.14
  6. Step 6: Final answer
    x = 103,415.90

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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.