Home / 187,973.66-281,891.09-81,373.16

Finding the Fourth Proportional to 187,973.66, 281,891.09 and 81,373.16

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Solution

The fourth proportional to 187,973.66, 281,891.09 and 81,373.16 is: 122,029.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,973.66 : 281,891.09 = 81,373.16 : x
  2. Step 2: Convert to fraction form
    187,973.66/281,891.09 = 81,373.16/x
  3. Step 3: Cross multiply
    187,973.66x = 281,891.09 × 81,373.16
  4. Step 4: Simplify right side
    187,973.66x = 22,938,367,633.94
  5. Step 5: Solve for x
    x = 22,938,367,633.94/187,973.66
  6. Step 6: Final answer
    x = 122,029.69

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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.