Home / 206,427.71-309,567.26-71,455.10

Finding the Fourth Proportional to 206,427.71, 309,567.26 and 71,455.10

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Solution

The fourth proportional to 206,427.71, 309,567.26 and 71,455.10 is: 107,156.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,427.71 : 309,567.26 = 71,455.10 : x
  2. Step 2: Convert to fraction form
    206,427.71/309,567.26 = 71,455.10/x
  3. Step 3: Cross multiply
    206,427.71x = 309,567.26 × 71,455.10
  4. Step 4: Simplify right side
    206,427.71x = 22,120,159,936.67
  5. Step 5: Solve for x
    x = 22,120,159,936.67/206,427.71
  6. Step 6: Final answer
    x = 107,156.93

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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.