Home / 206,687.24-310,030.86-66,445.86

Finding the Fourth Proportional to 206,687.24, 310,030.86 and 66,445.86

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Solution

The fourth proportional to 206,687.24, 310,030.86 and 66,445.86 is: 99,668.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,687.24 : 310,030.86 = 66,445.86 : x
  2. Step 2: Convert to fraction form
    206,687.24/310,030.86 = 66,445.86/x
  3. Step 3: Cross multiply
    206,687.24x = 310,030.86 × 66,445.86
  4. Step 4: Simplify right side
    206,687.24x = 20,600,267,119.24
  5. Step 5: Solve for x
    x = 20,600,267,119.24/206,687.24
  6. Step 6: Final answer
    x = 99,668.79

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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.