Home / 206,567.07-309,853.98-71,635.38

Finding the Fourth Proportional to 206,567.07, 309,853.98 and 71,635.38

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Solution

The fourth proportional to 206,567.07, 309,853.98 and 71,635.38 is: 107,454.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,567.07 : 309,853.98 = 71,635.38 : x
  2. Step 2: Convert to fraction form
    206,567.07/309,853.98 = 71,635.38/x
  3. Step 3: Cross multiply
    206,567.07x = 309,853.98 × 71,635.38
  4. Step 4: Simplify right side
    206,567.07x = 22,196,507,601.81
  5. Step 5: Solve for x
    x = 22,196,507,601.81/206,567.07
  6. Step 6: Final answer
    x = 107,454.24

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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.