Home / 104,475.90-156,781.05-57,762.30

Finding the Fourth Proportional to 104,475.90, 156,781.05 and 57,762.30

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Solution

The fourth proportional to 104,475.90, 156,781.05 and 57,762.30 is: 86,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,475.90 : 156,781.05 = 57,762.30 : x
  2. Step 2: Convert to fraction form
    104,475.90/156,781.05 = 57,762.30/x
  3. Step 3: Cross multiply
    104,475.90x = 156,781.05 × 57,762.30
  4. Step 4: Simplify right side
    104,475.90x = 9,056,034,044.42
  5. Step 5: Solve for x
    x = 9,056,034,044.42/104,475.90
  6. Step 6: Final answer
    x = 86,680.60

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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.