Home / 139,559.20-209,338.80-132,342.10

Finding the Fourth Proportional to 139,559.20, 209,338.80 and 132,342.10

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Solution

The fourth proportional to 139,559.20, 209,338.80 and 132,342.10 is: 198,513.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,559.20 : 209,338.80 = 132,342.10 : x
  2. Step 2: Convert to fraction form
    139,559.20/209,338.80 = 132,342.10/x
  3. Step 3: Cross multiply
    139,559.20x = 209,338.80 × 132,342.10
  4. Step 4: Simplify right side
    139,559.20x = 27,704,336,403.48
  5. Step 5: Solve for x
    x = 27,704,336,403.48/139,559.20
  6. Step 6: Final answer
    x = 198,513.15

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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.