Home / 114,469.20-158,008.40-78,144.66

Finding the Fourth Proportional to 114,469.20, 158,008.40 and 78,144.66

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Solution

The fourth proportional to 114,469.20, 158,008.40 and 78,144.66 is: 107,867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,469.20 : 158,008.40 = 78,144.66 : x
  2. Step 2: Convert to fraction form
    114,469.20/158,008.40 = 78,144.66/x
  3. Step 3: Cross multiply
    114,469.20x = 158,008.40 × 78,144.66
  4. Step 4: Simplify right side
    114,469.20x = 12,347,512,695.14
  5. Step 5: Solve for x
    x = 12,347,512,695.14/114,469.20
  6. Step 6: Final answer
    x = 107,867.55

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1.5x scale

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.