Home / 187,976.66-281,895.59-81,376.16

Finding the Fourth Proportional to 187,976.66, 281,895.59 and 81,376.16

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Solution

The fourth proportional to 187,976.66, 281,895.59 and 81,376.16 is: 122,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,976.66 : 281,895.59 = 81,376.16 : x
  2. Step 2: Convert to fraction form
    187,976.66/281,895.59 = 81,376.16/x
  3. Step 3: Cross multiply
    187,976.66x = 281,895.59 × 81,376.16
  4. Step 4: Simplify right side
    187,976.66x = 22,939,580,635.13
  5. Step 5: Solve for x
    x = 22,939,580,635.13/187,976.66
  6. Step 6: Final answer
    x = 122,034.20

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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.