Home / 158,202.88-218,382.96-103,775.76

Finding the Fourth Proportional to 158,202.88, 218,382.96 and 103,775.76

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Solution

The fourth proportional to 158,202.88, 218,382.96 and 103,775.76 is: 143,251.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,202.88 : 218,382.96 = 103,775.76 : x
  2. Step 2: Convert to fraction form
    158,202.88/218,382.96 = 103,775.76/x
  3. Step 3: Cross multiply
    158,202.88x = 218,382.96 × 103,775.76
  4. Step 4: Simplify right side
    158,202.88x = 22,662,857,645.05
  5. Step 5: Solve for x
    x = 22,662,857,645.05/158,202.88
  6. Step 6: Final answer
    x = 143,251.87

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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.