Home / 158,254.26-218,397-90,282.30

Finding the Fourth Proportional to 158,254.26, 218,397 and 90,282.30

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Solution

The fourth proportional to 158,254.26, 218,397 and 90,282.30 is: 124,593.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,254.26 : 218,397 = 90,282.30 : x
  2. Step 2: Convert to fraction form
    158,254.26/218,397 = 90,282.30/x
  3. Step 3: Cross multiply
    158,254.26x = 218,397 × 90,282.30
  4. Step 4: Simplify right side
    158,254.26x = 19,717,383,473.10
  5. Step 5: Solve for x
    x = 19,717,383,473.10/158,254.26
  6. Step 6: Final answer
    x = 124,593.07

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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.