Home / 187,742.80-281,695.20-108,924.40

Finding the Fourth Proportional to 187,742.80, 281,695.20 and 108,924.40

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Solution

The fourth proportional to 187,742.80, 281,695.20 and 108,924.40 is: 163,433.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,742.80 : 281,695.20 = 108,924.40 : x
  2. Step 2: Convert to fraction form
    187,742.80/281,695.20 = 108,924.40/x
  3. Step 3: Cross multiply
    187,742.80x = 281,695.20 × 108,924.40
  4. Step 4: Simplify right side
    187,742.80x = 30,683,480,642.88
  5. Step 5: Solve for x
    x = 30,683,480,642.88/187,742.80
  6. Step 6: Final answer
    x = 163,433.59

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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.