Home / 187,430.20-281,159.88-54,312.38

Finding the Fourth Proportional to 187,430.20, 281,159.88 and 54,312.38

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Solution

The fourth proportional to 187,430.20, 281,159.88 and 54,312.38 is: 81,472.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,430.20 : 281,159.88 = 54,312.38 : x
  2. Step 2: Convert to fraction form
    187,430.20/281,159.88 = 54,312.38/x
  3. Step 3: Cross multiply
    187,430.20x = 281,159.88 × 54,312.38
  4. Step 4: Simplify right side
    187,430.20x = 15,270,462,243.31
  5. Step 5: Solve for x
    x = 15,270,462,243.31/187,430.20
  6. Step 6: Final answer
    x = 81,472.79

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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.