Home / 158,837.40-219,169.62-90,843.42

Finding the Fourth Proportional to 158,837.40, 219,169.62 and 90,843.42

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Solution

The fourth proportional to 158,837.40, 219,169.62 and 90,843.42 is: 125,349.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,837.40 : 219,169.62 = 90,843.42 : x
  2. Step 2: Convert to fraction form
    158,837.40/219,169.62 = 90,843.42/x
  3. Step 3: Cross multiply
    158,837.40x = 219,169.62 × 90,843.42
  4. Step 4: Simplify right side
    158,837.40x = 19,910,117,840.90
  5. Step 5: Solve for x
    x = 19,910,117,840.90/158,837.40
  6. Step 6: Final answer
    x = 125,349.05

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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.