Home / 113,385.30-169,932.15-68,964.90

Finding the Fourth Proportional to 113,385.30, 169,932.15 and 68,964.90

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Solution

The fourth proportional to 113,385.30, 169,932.15 and 68,964.90 is: 103,358.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,385.30 : 169,932.15 = 68,964.90 : x
  2. Step 2: Convert to fraction form
    113,385.30/169,932.15 = 68,964.90/x
  3. Step 3: Cross multiply
    113,385.30x = 169,932.15 × 68,964.90
  4. Step 4: Simplify right side
    113,385.30x = 11,719,353,731.54
  5. Step 5: Solve for x
    x = 11,719,353,731.54/113,385.30
  6. Step 6: Final answer
    x = 103,358.67

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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.