Home / 126,020.56-173,972.65-85,399.29

Finding the Fourth Proportional to 126,020.56, 173,972.65 and 85,399.29

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Solution

The fourth proportional to 126,020.56, 173,972.65 and 85,399.29 is: 117,894.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,020.56 : 173,972.65 = 85,399.29 : x
  2. Step 2: Convert to fraction form
    126,020.56/173,972.65 = 85,399.29/x
  3. Step 3: Cross multiply
    126,020.56x = 173,972.65 × 85,399.29
  4. Step 4: Simplify right side
    126,020.56x = 14,857,140,672.09
  5. Step 5: Solve for x
    x = 14,857,140,672.09/126,020.56
  6. Step 6: Final answer
    x = 117,894.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.