Home / 207,136.12-310,488.72-140,581.66

Finding the Fourth Proportional to 207,136.12, 310,488.72 and 140,581.66

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Solution

The fourth proportional to 207,136.12, 310,488.72 and 140,581.66 is: 210,726.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,136.12 : 310,488.72 = 140,581.66 : x
  2. Step 2: Convert to fraction form
    207,136.12/310,488.72 = 140,581.66/x
  3. Step 3: Cross multiply
    207,136.12x = 310,488.72 × 140,581.66
  4. Step 4: Simplify right side
    207,136.12x = 43,649,019,668.88
  5. Step 5: Solve for x
    x = 43,649,019,668.88/207,136.12
  6. Step 6: Final answer
    x = 210,726.26

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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.