Home / 216,975.17-325,514.75-90,545.09

Finding the Fourth Proportional to 216,975.17, 325,514.75 and 90,545.09

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Solution

The fourth proportional to 216,975.17, 325,514.75 and 90,545.09 is: 135,839.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,975.17 : 325,514.75 = 90,545.09 : x
  2. Step 2: Convert to fraction form
    216,975.17/325,514.75 = 90,545.09/x
  3. Step 3: Cross multiply
    216,975.17x = 325,514.75 × 90,545.09
  4. Step 4: Simplify right side
    216,975.17x = 29,473,760,254.78
  5. Step 5: Solve for x
    x = 29,473,760,254.78/216,975.17
  6. Step 6: Final answer
    x = 135,839.32

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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.