Home / 113,235.60-156,273.84-67,915.28

Finding the Fourth Proportional to 113,235.60, 156,273.84 and 67,915.28

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Solution

The fourth proportional to 113,235.60, 156,273.84 and 67,915.28 is: 93,728.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,235.60 : 156,273.84 = 67,915.28 : x
  2. Step 2: Convert to fraction form
    113,235.60/156,273.84 = 67,915.28/x
  3. Step 3: Cross multiply
    113,235.60x = 156,273.84 × 67,915.28
  4. Step 4: Simplify right side
    113,235.60x = 10,613,381,600.28
  5. Step 5: Solve for x
    x = 10,613,381,600.28/113,235.60
  6. Step 6: Final answer
    x = 93,728.31

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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.