Home / 158,119.92-218,226.40-90,161.44

Finding the Fourth Proportional to 158,119.92, 218,226.40 and 90,161.44

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Solution

The fourth proportional to 158,119.92, 218,226.40 and 90,161.44 is: 124,434.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,119.92 : 218,226.40 = 90,161.44 : x
  2. Step 2: Convert to fraction form
    158,119.92/218,226.40 = 90,161.44/x
  3. Step 3: Cross multiply
    158,119.92x = 218,226.40 × 90,161.44
  4. Step 4: Simplify right side
    158,119.92x = 19,675,606,470.02
  5. Step 5: Solve for x
    x = 19,675,606,470.02/158,119.92
  6. Step 6: Final answer
    x = 124,434.71

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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.