Home / 108,031.60-161,763.44-76,270.48

Finding the Fourth Proportional to 108,031.60, 161,763.44 and 76,270.48

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Solution

The fourth proportional to 108,031.60, 161,763.44 and 76,270.48 is: 114,205.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,031.60 : 161,763.44 = 76,270.48 : x
  2. Step 2: Convert to fraction form
    108,031.60/161,763.44 = 76,270.48/x
  3. Step 3: Cross multiply
    108,031.60x = 161,763.44 × 76,270.48
  4. Step 4: Simplify right side
    108,031.60x = 12,337,775,215.25
  5. Step 5: Solve for x
    x = 12,337,775,215.25/108,031.60
  6. Step 6: Final answer
    x = 114,205.24

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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.