Home / 126,421.26-174,454.11-75,491.46

Finding the Fourth Proportional to 126,421.26, 174,454.11 and 75,491.46

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Solution

The fourth proportional to 126,421.26, 174,454.11 and 75,491.46 is: 104,173.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,421.26 : 174,454.11 = 75,491.46 : x
  2. Step 2: Convert to fraction form
    126,421.26/174,454.11 = 75,491.46/x
  3. Step 3: Cross multiply
    126,421.26x = 174,454.11 × 75,491.46
  4. Step 4: Simplify right side
    126,421.26x = 13,169,795,466.90
  5. Step 5: Solve for x
    x = 13,169,795,466.90/126,421.26
  6. Step 6: Final answer
    x = 104,173.90

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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.