Home / 129,116.60-193,674.90-108,449.45

Finding the Fourth Proportional to 129,116.60, 193,674.90 and 108,449.45

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Solution

The fourth proportional to 129,116.60, 193,674.90 and 108,449.45 is: 162,674.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,116.60 : 193,674.90 = 108,449.45 : x
  2. Step 2: Convert to fraction form
    129,116.60/193,674.90 = 108,449.45/x
  3. Step 3: Cross multiply
    129,116.60x = 193,674.90 × 108,449.45
  4. Step 4: Simplify right side
    129,116.60x = 21,003,936,383.81
  5. Step 5: Solve for x
    x = 21,003,936,383.81/129,116.60
  6. Step 6: Final answer
    x = 162,674.18

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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.