Home / 159,454.08-220,052.16-87,837.12

Finding the Fourth Proportional to 159,454.08, 220,052.16 and 87,837.12

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Solution

The fourth proportional to 159,454.08, 220,052.16 and 87,837.12 is: 121,218.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,454.08 : 220,052.16 = 87,837.12 : x
  2. Step 2: Convert to fraction form
    159,454.08/220,052.16 = 87,837.12/x
  3. Step 3: Cross multiply
    159,454.08x = 220,052.16 × 87,837.12
  4. Step 4: Simplify right side
    159,454.08x = 19,328,747,984.18
  5. Step 5: Solve for x
    x = 19,328,747,984.18/159,454.08
  6. Step 6: Final answer
    x = 121,218.27

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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.