Home / 448,514.18-672,882-132,971.07

Finding the Fourth Proportional to 448,514.18, 672,882 and 132,971.07

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Solution

The fourth proportional to 448,514.18, 672,882 and 132,971.07 is: 199,489.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,514.18 : 672,882 = 132,971.07 : x
  2. Step 2: Convert to fraction form
    448,514.18/672,882 = 132,971.07/x
  3. Step 3: Cross multiply
    448,514.18x = 672,882 × 132,971.07
  4. Step 4: Simplify right side
    448,514.18x = 89,473,839,523.74
  5. Step 5: Solve for x
    x = 89,473,839,523.74/448,514.18
  6. Step 6: Final answer
    x = 199,489.43

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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.