Home / 113,491.45-156,571.19-67,541.90

Finding the Fourth Proportional to 113,491.45, 156,571.19 and 67,541.90

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Solution

The fourth proportional to 113,491.45, 156,571.19 and 67,541.90 is: 93,179.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,491.45 : 156,571.19 = 67,541.90 : x
  2. Step 2: Convert to fraction form
    113,491.45/156,571.19 = 67,541.90/x
  3. Step 3: Cross multiply
    113,491.45x = 156,571.19 × 67,541.90
  4. Step 4: Simplify right side
    113,491.45x = 10,575,115,657.86
  5. Step 5: Solve for x
    x = 10,575,115,657.86/113,491.45
  6. Step 6: Final answer
    x = 93,179.85

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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.