Home / 96,815.60-145,067.52-81,263.60

Finding the Fourth Proportional to 96,815.60, 145,067.52 and 81,263.60

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Solution

The fourth proportional to 96,815.60, 145,067.52 and 81,263.60 is: 121,764.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,815.60 : 145,067.52 = 81,263.60 : x
  2. Step 2: Convert to fraction form
    96,815.60/145,067.52 = 81,263.60/x
  3. Step 3: Cross multiply
    96,815.60x = 145,067.52 × 81,263.60
  4. Step 4: Simplify right side
    96,815.60x = 11,788,708,918.27
  5. Step 5: Solve for x
    x = 11,788,708,918.27/96,815.60
  6. Step 6: Final answer
    x = 121,764.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.