Home / 139,534.20-209,366.10-73,049.40

Finding the Fourth Proportional to 139,534.20, 209,366.10 and 73,049.40

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Solution

The fourth proportional to 139,534.20, 209,366.10 and 73,049.40 is: 109,608.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,534.20 : 209,366.10 = 73,049.40 : x
  2. Step 2: Convert to fraction form
    139,534.20/209,366.10 = 73,049.40/x
  3. Step 3: Cross multiply
    139,534.20x = 209,366.10 × 73,049.40
  4. Step 4: Simplify right side
    139,534.20x = 15,294,067,985.34
  5. Step 5: Solve for x
    x = 15,294,067,985.34/139,534.20
  6. Step 6: Final answer
    x = 109,608.02

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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.