Home / 187,636.41-281,452.85-81,095.70

Finding the Fourth Proportional to 187,636.41, 281,452.85 and 81,095.70

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Solution

The fourth proportional to 187,636.41, 281,452.85 and 81,095.70 is: 121,642.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,636.41 : 281,452.85 = 81,095.70 : x
  2. Step 2: Convert to fraction form
    187,636.41/281,452.85 = 81,095.70/x
  3. Step 3: Cross multiply
    187,636.41x = 281,452.85 × 81,095.70
  4. Step 4: Simplify right side
    187,636.41x = 22,824,615,887.75
  5. Step 5: Solve for x
    x = 22,824,615,887.75/187,636.41
  6. Step 6: Final answer
    x = 121,642.79

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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.