Home / 113,541.28-156,691.78-63,240.28

Finding the Fourth Proportional to 113,541.28, 156,691.78 and 63,240.28

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Solution

The fourth proportional to 113,541.28, 156,691.78 and 63,240.28 is: 87,274.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,541.28 : 156,691.78 = 63,240.28 : x
  2. Step 2: Convert to fraction form
    113,541.28/156,691.78 = 63,240.28/x
  3. Step 3: Cross multiply
    113,541.28x = 156,691.78 × 63,240.28
  4. Step 4: Simplify right side
    113,541.28x = 9,909,232,040.90
  5. Step 5: Solve for x
    x = 9,909,232,040.90/113,541.28
  6. Step 6: Final answer
    x = 87,274.27

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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.