Home / 139,517.12-209,308.49-43,449.50

Finding the Fourth Proportional to 139,517.12, 209,308.49 and 43,449.50

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Solution

The fourth proportional to 139,517.12, 209,308.49 and 43,449.50 is: 65,184.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,517.12 : 209,308.49 = 43,449.50 : x
  2. Step 2: Convert to fraction form
    139,517.12/209,308.49 = 43,449.50/x
  3. Step 3: Cross multiply
    139,517.12x = 209,308.49 × 43,449.50
  4. Step 4: Simplify right side
    139,517.12x = 9,094,349,236.26
  5. Step 5: Solve for x
    x = 9,094,349,236.26/139,517.12
  6. Step 6: Final answer
    x = 65,184.47

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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.