Home / 239,013.51-358,298.82-81,131.27

Finding the Fourth Proportional to 239,013.51, 358,298.82 and 81,131.27

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Solution

The fourth proportional to 239,013.51, 358,298.82 and 81,131.27 is: 121,621.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,013.51 : 358,298.82 = 81,131.27 : x
  2. Step 2: Convert to fraction form
    239,013.51/358,298.82 = 81,131.27/x
  3. Step 3: Cross multiply
    239,013.51x = 358,298.82 × 81,131.27
  4. Step 4: Simplify right side
    239,013.51x = 29,069,236,514.61
  5. Step 5: Solve for x
    x = 29,069,236,514.61/239,013.51
  6. Step 6: Final answer
    x = 121,621.73

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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.