Home / 108,566.60-162,849.90-71,241.80

Finding the Fourth Proportional to 108,566.60, 162,849.90 and 71,241.80

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Solution

The fourth proportional to 108,566.60, 162,849.90 and 71,241.80 is: 106,862.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,566.60 : 162,849.90 = 71,241.80 : x
  2. Step 2: Convert to fraction form
    108,566.60/162,849.90 = 71,241.80/x
  3. Step 3: Cross multiply
    108,566.60x = 162,849.90 × 71,241.80
  4. Step 4: Simplify right side
    108,566.60x = 11,601,720,005.82
  5. Step 5: Solve for x
    x = 11,601,720,005.82/108,566.60
  6. Step 6: Final answer
    x = 106,862.70

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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.