Home / 187,778.76-281,665.50-45,625.08

Finding the Fourth Proportional to 187,778.76, 281,665.50 and 45,625.08

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Solution

The fourth proportional to 187,778.76, 281,665.50 and 45,625.08 is: 68,436.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,778.76 : 281,665.50 = 45,625.08 : x
  2. Step 2: Convert to fraction form
    187,778.76/281,665.50 = 45,625.08/x
  3. Step 3: Cross multiply
    187,778.76x = 281,665.50 × 45,625.08
  4. Step 4: Simplify right side
    187,778.76x = 12,851,010,970.74
  5. Step 5: Solve for x
    x = 12,851,010,970.74/187,778.76
  6. Step 6: Final answer
    x = 68,436.98

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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.