Home / 159,473-220,082.82-87,853.16

Finding the Fourth Proportional to 159,473, 220,082.82 and 87,853.16

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Solution

The fourth proportional to 159,473, 220,082.82 and 87,853.16 is: 121,242.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,473 : 220,082.82 = 87,853.16 : x
  2. Step 2: Convert to fraction form
    159,473/220,082.82 = 87,853.16/x
  3. Step 3: Cross multiply
    159,473x = 220,082.82 × 87,853.16
  4. Step 4: Simplify right side
    159,473x = 19,334,971,198.71
  5. Step 5: Solve for x
    x = 19,334,971,198.71/159,473
  6. Step 6: Final answer
    x = 121,242.91

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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.