Home / 129,233.64-193,818.06-91,684.20

Finding the Fourth Proportional to 129,233.64, 193,818.06 and 91,684.20

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Solution

The fourth proportional to 129,233.64, 193,818.06 and 91,684.20 is: 137,503.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,233.64 : 193,818.06 = 91,684.20 : x
  2. Step 2: Convert to fraction form
    129,233.64/193,818.06 = 91,684.20/x
  3. Step 3: Cross multiply
    129,233.64x = 193,818.06 × 91,684.20
  4. Step 4: Simplify right side
    129,233.64x = 17,770,053,776.65
  5. Step 5: Solve for x
    x = 17,770,053,776.65/129,233.64
  6. Step 6: Final answer
    x = 137,503.31

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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.