Home / 187,881.20-281,822.40-45,726.50

Finding the Fourth Proportional to 187,881.20, 281,822.40 and 45,726.50

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Solution

The fourth proportional to 187,881.20, 281,822.40 and 45,726.50 is: 68,589.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,881.20 : 281,822.40 = 45,726.50 : x
  2. Step 2: Convert to fraction form
    187,881.20/281,822.40 = 45,726.50/x
  3. Step 3: Cross multiply
    187,881.20x = 281,822.40 × 45,726.50
  4. Step 4: Simplify right side
    187,881.20x = 12,886,751,973.60
  5. Step 5: Solve for x
    x = 12,886,751,973.60/187,881.20
  6. Step 6: Final answer
    x = 68,589.90

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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.