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Finding the Fourth Proportional to 118,527.20, 177,542.40 and 55,401.20

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Solution

The fourth proportional to 118,527.20, 177,542.40 and 55,401.20 is: 82,985.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,527.20 : 177,542.40 = 55,401.20 : x
  2. Step 2: Convert to fraction form
    118,527.20/177,542.40 = 55,401.20/x
  3. Step 3: Cross multiply
    118,527.20x = 177,542.40 × 55,401.20
  4. Step 4: Simplify right side
    118,527.20x = 9,836,062,010.88
  5. Step 5: Solve for x
    x = 9,836,062,010.88/118,527.20
  6. Step 6: Final answer
    x = 82,985.69

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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.