Home / 150,979.74-208,382.25-115,105.68

Finding the Fourth Proportional to 150,979.74, 208,382.25 and 115,105.68

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Solution

The fourth proportional to 150,979.74, 208,382.25 and 115,105.68 is: 158,868.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,979.74 : 208,382.25 = 115,105.68 : x
  2. Step 2: Convert to fraction form
    150,979.74/208,382.25 = 115,105.68/x
  3. Step 3: Cross multiply
    150,979.74x = 208,382.25 × 115,105.68
  4. Step 4: Simplify right side
    150,979.74x = 23,985,980,586.18
  5. Step 5: Solve for x
    x = 23,985,980,586.18/150,979.74
  6. Step 6: Final answer
    x = 158,868.87

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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.