Home / 126,294.85-174,349.97-78,563.71

Finding the Fourth Proportional to 126,294.85, 174,349.97 and 78,563.71

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Solution

The fourth proportional to 126,294.85, 174,349.97 and 78,563.71 is: 108,457.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,294.85 : 174,349.97 = 78,563.71 : x
  2. Step 2: Convert to fraction form
    126,294.85/174,349.97 = 78,563.71/x
  3. Step 3: Cross multiply
    126,294.85x = 174,349.97 × 78,563.71
  4. Step 4: Simplify right side
    126,294.85x = 13,697,580,481.59
  5. Step 5: Solve for x
    x = 13,697,580,481.59/126,294.85
  6. Step 6: Final answer
    x = 108,457.16

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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.