Home / 131,059.52-180,865.96-74,473.28

Finding the Fourth Proportional to 131,059.52, 180,865.96 and 74,473.28

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Solution

The fourth proportional to 131,059.52, 180,865.96 and 74,473.28 is: 102,775.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,059.52 : 180,865.96 = 74,473.28 : x
  2. Step 2: Convert to fraction form
    131,059.52/180,865.96 = 74,473.28/x
  3. Step 3: Cross multiply
    131,059.52x = 180,865.96 × 74,473.28
  4. Step 4: Simplify right side
    131,059.52x = 13,469,681,281.55
  5. Step 5: Solve for x
    x = 13,469,681,281.55/131,059.52
  6. Step 6: Final answer
    x = 102,775.30

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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.