Home / 187,493.48-281,285.34-76,685.80

Finding the Fourth Proportional to 187,493.48, 281,285.34 and 76,685.80

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Solution

The fourth proportional to 187,493.48, 281,285.34 and 76,685.80 is: 115,047.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,493.48 : 281,285.34 = 76,685.80 : x
  2. Step 2: Convert to fraction form
    187,493.48/281,285.34 = 76,685.80/x
  3. Step 3: Cross multiply
    187,493.48x = 281,285.34 × 76,685.80
  4. Step 4: Simplify right side
    187,493.48x = 21,570,591,326.17
  5. Step 5: Solve for x
    x = 21,570,591,326.17/187,493.48
  6. Step 6: Final answer
    x = 115,047.15

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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.