Home / 109,770.30-164,655.45-107,145.90

Finding the Fourth Proportional to 109,770.30, 164,655.45 and 107,145.90

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Solution

The fourth proportional to 109,770.30, 164,655.45 and 107,145.90 is: 160,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,770.30 : 164,655.45 = 107,145.90 : x
  2. Step 2: Convert to fraction form
    109,770.30/164,655.45 = 107,145.90/x
  3. Step 3: Cross multiply
    109,770.30x = 164,655.45 × 107,145.90
  4. Step 4: Simplify right side
    109,770.30x = 17,642,156,380.16
  5. Step 5: Solve for x
    x = 17,642,156,380.16/109,770.30
  6. Step 6: Final answer
    x = 160,718.85

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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.