Home / 187,510.48-281,310.84-76,702.80

Finding the Fourth Proportional to 187,510.48, 281,310.84 and 76,702.80

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Solution

The fourth proportional to 187,510.48, 281,310.84 and 76,702.80 is: 115,072.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,510.48 : 281,310.84 = 76,702.80 : x
  2. Step 2: Convert to fraction form
    187,510.48/281,310.84 = 76,702.80/x
  3. Step 3: Cross multiply
    187,510.48x = 281,310.84 × 76,702.80
  4. Step 4: Simplify right side
    187,510.48x = 21,577,329,098.35
  5. Step 5: Solve for x
    x = 21,577,329,098.35/187,510.48
  6. Step 6: Final answer
    x = 115,072.66

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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.