Home / 217,061.10-325,575.45-90,668.70

Finding the Fourth Proportional to 217,061.10, 325,575.45 and 90,668.70

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Solution

The fourth proportional to 217,061.10, 325,575.45 and 90,668.70 is: 135,996.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,061.10 : 325,575.45 = 90,668.70 : x
  2. Step 2: Convert to fraction form
    217,061.10/325,575.45 = 90,668.70/x
  3. Step 3: Cross multiply
    217,061.10x = 325,575.45 × 90,668.70
  4. Step 4: Simplify right side
    217,061.10x = 29,519,502,803.42
  5. Step 5: Solve for x
    x = 29,519,502,803.42/217,061.10
  6. Step 6: Final answer
    x = 135,996.28

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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.