Home / 126,114.44-174,118.98-78,432.68

Finding the Fourth Proportional to 126,114.44, 174,118.98 and 78,432.68

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Solution

The fourth proportional to 126,114.44, 174,118.98 and 78,432.68 is: 108,287.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,114.44 : 174,118.98 = 78,432.68 : x
  2. Step 2: Convert to fraction form
    126,114.44/174,118.98 = 78,432.68/x
  3. Step 3: Cross multiply
    126,114.44x = 174,118.98 × 78,432.68
  4. Step 4: Simplify right side
    126,114.44x = 13,656,618,240.27
  5. Step 5: Solve for x
    x = 13,656,618,240.27/126,114.44
  6. Step 6: Final answer
    x = 108,287.51

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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.