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Finding the Fourth Proportional to 121,449.15, 180,952.59 and 114,658.50

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Solution

The fourth proportional to 121,449.15, 180,952.59 and 114,658.50 is: 170,834.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,449.15 : 180,952.59 = 114,658.50 : x
  2. Step 2: Convert to fraction form
    121,449.15/180,952.59 = 114,658.50/x
  3. Step 3: Cross multiply
    121,449.15x = 180,952.59 × 114,658.50
  4. Step 4: Simplify right side
    121,449.15x = 20,747,752,540.52
  5. Step 5: Solve for x
    x = 20,747,752,540.52/121,449.15
  6. Step 6: Final answer
    x = 170,834.89

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.