Home / 187,439.60-281,159.40-108,707.60

Finding the Fourth Proportional to 187,439.60, 281,159.40 and 108,707.60

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Solution

The fourth proportional to 187,439.60, 281,159.40 and 108,707.60 is: 163,061.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,439.60 : 281,159.40 = 108,707.60 : x
  2. Step 2: Convert to fraction form
    187,439.60/281,159.40 = 108,707.60/x
  3. Step 3: Cross multiply
    187,439.60x = 281,159.40 × 108,707.60
  4. Step 4: Simplify right side
    187,439.60x = 30,564,163,591.44
  5. Step 5: Solve for x
    x = 30,564,163,591.44/187,439.60
  6. Step 6: Final answer
    x = 163,061.40

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1.5x scale

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.