Home / 123,880.56-170,952.29-72,194.36

Finding the Fourth Proportional to 123,880.56, 170,952.29 and 72,194.36

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Solution

The fourth proportional to 123,880.56, 170,952.29 and 72,194.36 is: 99,626.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,880.56 : 170,952.29 = 72,194.36 : x
  2. Step 2: Convert to fraction form
    123,880.56/170,952.29 = 72,194.36/x
  3. Step 3: Cross multiply
    123,880.56x = 170,952.29 × 72,194.36
  4. Step 4: Simplify right side
    123,880.56x = 12,341,791,589.78
  5. Step 5: Solve for x
    x = 12,341,791,589.78/123,880.56
  6. Step 6: Final answer
    x = 99,626.54

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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.