Home / 131,427.28-197,140.72-52,560

Finding the Fourth Proportional to 131,427.28, 197,140.72 and 52,560

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Solution

The fourth proportional to 131,427.28, 197,140.72 and 52,560 is: 78,839.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,427.28 : 197,140.72 = 52,560 : x
  2. Step 2: Convert to fraction form
    131,427.28/197,140.72 = 52,560/x
  3. Step 3: Cross multiply
    131,427.28x = 197,140.72 × 52,560
  4. Step 4: Simplify right side
    131,427.28x = 10,361,716,243.20
  5. Step 5: Solve for x
    x = 10,361,716,243.20/131,427.28
  6. Step 6: Final answer
    x = 78,839.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.