Home / 158,227.21-218,310.36-90,219.38

Finding the Fourth Proportional to 158,227.21, 218,310.36 and 90,219.38

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Solution

The fourth proportional to 158,227.21, 218,310.36 and 90,219.38 is: 124,478.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,227.21 : 218,310.36 = 90,219.38 : x
  2. Step 2: Convert to fraction form
    158,227.21/218,310.36 = 90,219.38/x
  3. Step 3: Cross multiply
    158,227.21x = 218,310.36 × 90,219.38
  4. Step 4: Simplify right side
    158,227.21x = 19,695,825,326.78
  5. Step 5: Solve for x
    x = 19,695,825,326.78/158,227.21
  6. Step 6: Final answer
    x = 124,478.12

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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.