Home / 126,585.26-174,605.32-81,191.31

Finding the Fourth Proportional to 126,585.26, 174,605.32 and 81,191.31

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Solution

The fourth proportional to 126,585.26, 174,605.32 and 81,191.31 is: 111,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,585.26 : 174,605.32 = 81,191.31 : x
  2. Step 2: Convert to fraction form
    126,585.26/174,605.32 = 81,191.31/x
  3. Step 3: Cross multiply
    126,585.26x = 174,605.32 × 81,191.31
  4. Step 4: Simplify right side
    126,585.26x = 14,176,434,663.77
  5. Step 5: Solve for x
    x = 14,176,434,663.77/126,585.26
  6. Step 6: Final answer
    x = 111,991.20

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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.