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Finding the Fourth Proportional to 115,365.20, 173,047.80 and 75,966.80

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Solution

The fourth proportional to 115,365.20, 173,047.80 and 75,966.80 is: 113,950.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,365.20 : 173,047.80 = 75,966.80 : x
  2. Step 2: Convert to fraction form
    115,365.20/173,047.80 = 75,966.80/x
  3. Step 3: Cross multiply
    115,365.20x = 173,047.80 × 75,966.80
  4. Step 4: Simplify right side
    115,365.20x = 13,145,887,613.04
  5. Step 5: Solve for x
    x = 13,145,887,613.04/115,365.20
  6. Step 6: Final answer
    x = 113,950.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.