Home / 285,204.90-427,806.18-71,973.30

Finding the Fourth Proportional to 285,204.90, 427,806.18 and 71,973.30

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Solution

The fourth proportional to 285,204.90, 427,806.18 and 71,973.30 is: 107,959.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,204.90 : 427,806.18 = 71,973.30 : x
  2. Step 2: Convert to fraction form
    285,204.90/427,806.18 = 71,973.30/x
  3. Step 3: Cross multiply
    285,204.90x = 427,806.18 × 71,973.30
  4. Step 4: Simplify right side
    285,204.90x = 30,790,622,534.99
  5. Step 5: Solve for x
    x = 30,790,622,534.99/285,204.90
  6. Step 6: Final answer
    x = 107,959.65

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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.