Home / 115,049.20-158,736.90-67,314.28

Finding the Fourth Proportional to 115,049.20, 158,736.90 and 67,314.28

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Solution

The fourth proportional to 115,049.20, 158,736.90 and 67,314.28 is: 92,875.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,049.20 : 158,736.90 = 67,314.28 : x
  2. Step 2: Convert to fraction form
    115,049.20/158,736.90 = 67,314.28/x
  3. Step 3: Cross multiply
    115,049.20x = 158,736.90 × 67,314.28
  4. Step 4: Simplify right side
    115,049.20x = 10,685,260,132.93
  5. Step 5: Solve for x
    x = 10,685,260,132.93/115,049.20
  6. Step 6: Final answer
    x = 92,875.57

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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.