Home / 206,867.61-310,301.43-66,626.24

Finding the Fourth Proportional to 206,867.61, 310,301.43 and 66,626.24

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Solution

The fourth proportional to 206,867.61, 310,301.43 and 66,626.24 is: 99,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,867.61 : 310,301.43 = 66,626.24 : x
  2. Step 2: Convert to fraction form
    206,867.61/310,301.43 = 66,626.24/x
  3. Step 3: Cross multiply
    206,867.61x = 310,301.43 × 66,626.24
  4. Step 4: Simplify right side
    206,867.61x = 20,674,215,996.02
  5. Step 5: Solve for x
    x = 20,674,215,996.02/206,867.61
  6. Step 6: Final answer
    x = 99,939.36

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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.