Home / 129,609.56-193,952.40-89,636.66

Finding the Fourth Proportional to 129,609.56, 193,952.40 and 89,636.66

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Solution

The fourth proportional to 129,609.56, 193,952.40 and 89,636.66 is: 134,135.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,609.56 : 193,952.40 = 89,636.66 : x
  2. Step 2: Convert to fraction form
    129,609.56/193,952.40 = 89,636.66/x
  3. Step 3: Cross multiply
    129,609.56x = 193,952.40 × 89,636.66
  4. Step 4: Simplify right side
    129,609.56x = 17,385,245,334.98
  5. Step 5: Solve for x
    x = 17,385,245,334.98/129,609.56
  6. Step 6: Final answer
    x = 134,135.52

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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.