Home / 113,734.12-156,903.18-68,385.88

Finding the Fourth Proportional to 113,734.12, 156,903.18 and 68,385.88

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Solution

The fourth proportional to 113,734.12, 156,903.18 and 68,385.88 is: 94,342.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,734.12 : 156,903.18 = 68,385.88 : x
  2. Step 2: Convert to fraction form
    113,734.12/156,903.18 = 68,385.88/x
  3. Step 3: Cross multiply
    113,734.12x = 156,903.18 × 68,385.88
  4. Step 4: Simplify right side
    113,734.12x = 10,729,962,039.10
  5. Step 5: Solve for x
    x = 10,729,962,039.10/113,734.12
  6. Step 6: Final answer
    x = 94,342.51

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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.