Home / 139,680.14-209,402.85-113,319.50

Finding the Fourth Proportional to 139,680.14, 209,402.85 and 113,319.50

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Solution

The fourth proportional to 139,680.14, 209,402.85 and 113,319.50 is: 169,884.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,680.14 : 209,402.85 = 113,319.50 : x
  2. Step 2: Convert to fraction form
    139,680.14/209,402.85 = 113,319.50/x
  3. Step 3: Cross multiply
    139,680.14x = 209,402.85 × 113,319.50
  4. Step 4: Simplify right side
    139,680.14x = 23,729,426,260.58
  5. Step 5: Solve for x
    x = 23,729,426,260.58/139,680.14
  6. Step 6: Final answer
    x = 169,884.04

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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.