Home / 126,301.10-174,358.60-78,569.96

Finding the Fourth Proportional to 126,301.10, 174,358.60 and 78,569.96

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Solution

The fourth proportional to 126,301.10, 174,358.60 and 78,569.96 is: 108,465.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,301.10 : 174,358.60 = 78,569.96 : x
  2. Step 2: Convert to fraction form
    126,301.10/174,358.60 = 78,569.96/x
  3. Step 3: Cross multiply
    126,301.10x = 174,358.60 × 78,569.96
  4. Step 4: Simplify right side
    126,301.10x = 13,699,348,227.66
  5. Step 5: Solve for x
    x = 13,699,348,227.66/126,301.10
  6. Step 6: Final answer
    x = 108,465.79

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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.