Home / 129,204.59-193,864.55-65,991.43

Finding the Fourth Proportional to 129,204.59, 193,864.55 and 65,991.43

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Solution

The fourth proportional to 129,204.59, 193,864.55 and 65,991.43 is: 99,016.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,204.59 : 193,864.55 = 65,991.43 : x
  2. Step 2: Convert to fraction form
    129,204.59/193,864.55 = 65,991.43/x
  3. Step 3: Cross multiply
    129,204.59x = 193,864.55 × 65,991.43
  4. Step 4: Simplify right side
    129,204.59x = 12,793,398,066.19
  5. Step 5: Solve for x
    x = 12,793,398,066.19/129,204.59
  6. Step 6: Final answer
    x = 99,016.59

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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.