Home / 149,645.12-206,366.16-100,697.04

Finding the Fourth Proportional to 149,645.12, 206,366.16 and 100,697.04

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Solution

The fourth proportional to 149,645.12, 206,366.16 and 100,697.04 is: 138,864.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,645.12 : 206,366.16 = 100,697.04 : x
  2. Step 2: Convert to fraction form
    149,645.12/206,366.16 = 100,697.04/x
  3. Step 3: Cross multiply
    149,645.12x = 206,366.16 × 100,697.04
  4. Step 4: Simplify right side
    149,645.12x = 20,780,461,468.17
  5. Step 5: Solve for x
    x = 20,780,461,468.17/149,645.12
  6. Step 6: Final answer
    x = 138,864.95

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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.