Home / 187,431.10-281,146.65-54,315.70

Finding the Fourth Proportional to 187,431.10, 281,146.65 and 54,315.70

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Solution

The fourth proportional to 187,431.10, 281,146.65 and 54,315.70 is: 81,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,431.10 : 281,146.65 = 54,315.70 : x
  2. Step 2: Convert to fraction form
    187,431.10/281,146.65 = 54,315.70/x
  3. Step 3: Cross multiply
    187,431.10x = 281,146.65 × 54,315.70
  4. Step 4: Simplify right side
    187,431.10x = 15,270,677,097.41
  5. Step 5: Solve for x
    x = 15,270,677,097.41/187,431.10
  6. Step 6: Final answer
    x = 81,473.55

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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.