Home / 126,042.37-173,931.60-78,294.85

Finding the Fourth Proportional to 126,042.37, 173,931.60 and 78,294.85

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Solution

The fourth proportional to 126,042.37, 173,931.60 and 78,294.85 is: 108,042.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,042.37 : 173,931.60 = 78,294.85 : x
  2. Step 2: Convert to fraction form
    126,042.37/173,931.60 = 78,294.85/x
  3. Step 3: Cross multiply
    126,042.37x = 173,931.60 × 78,294.85
  4. Step 4: Simplify right side
    126,042.37x = 13,617,948,532.26
  5. Step 5: Solve for x
    x = 13,617,948,532.26/126,042.37
  6. Step 6: Final answer
    x = 108,042.63

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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.