Home / 187,974.66-281,892.59-81,374.16

Finding the Fourth Proportional to 187,974.66, 281,892.59 and 81,374.16

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Solution

The fourth proportional to 187,974.66, 281,892.59 and 81,374.16 is: 122,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,974.66 : 281,892.59 = 81,374.16 : x
  2. Step 2: Convert to fraction form
    187,974.66/281,892.59 = 81,374.16/x
  3. Step 3: Cross multiply
    187,974.66x = 281,892.59 × 81,374.16
  4. Step 4: Simplify right side
    187,974.66x = 22,938,772,721.47
  5. Step 5: Solve for x
    x = 22,938,772,721.47/187,974.66
  6. Step 6: Final answer
    x = 122,031.20

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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.