Home / 102,536.68-153,789.66-85,118.44

Finding the Fourth Proportional to 102,536.68, 153,789.66 and 85,118.44

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Solution

The fourth proportional to 102,536.68, 153,789.66 and 85,118.44 is: 127,664.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,536.68 : 153,789.66 = 85,118.44 : x
  2. Step 2: Convert to fraction form
    102,536.68/153,789.66 = 85,118.44/x
  3. Step 3: Cross multiply
    102,536.68x = 153,789.66 × 85,118.44
  4. Step 4: Simplify right side
    102,536.68x = 13,090,335,947.33
  5. Step 5: Solve for x
    x = 13,090,335,947.33/102,536.68
  6. Step 6: Final answer
    x = 127,664.91

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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.