Home / 110,739.52-152,815.68-62,987.20

Finding the Fourth Proportional to 110,739.52, 152,815.68 and 62,987.20

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Solution

The fourth proportional to 110,739.52, 152,815.68 and 62,987.20 is: 86,919.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,739.52 : 152,815.68 = 62,987.20 : x
  2. Step 2: Convert to fraction form
    110,739.52/152,815.68 = 62,987.20/x
  3. Step 3: Cross multiply
    110,739.52x = 152,815.68 × 62,987.20
  4. Step 4: Simplify right side
    110,739.52x = 9,625,431,799.30
  5. Step 5: Solve for x
    x = 9,625,431,799.30/110,739.52
  6. Step 6: Final answer
    x = 86,919.57

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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.