Home / 113,765.75-156,996.63-62,778.48

Finding the Fourth Proportional to 113,765.75, 156,996.63 and 62,778.48

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Solution

The fourth proportional to 113,765.75, 156,996.63 and 62,778.48 is: 86,634.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,765.75 : 156,996.63 = 62,778.48 : x
  2. Step 2: Convert to fraction form
    113,765.75/156,996.63 = 62,778.48/x
  3. Step 3: Cross multiply
    113,765.75x = 156,996.63 × 62,778.48
  4. Step 4: Simplify right side
    113,765.75x = 9,856,009,207.79
  5. Step 5: Solve for x
    x = 9,856,009,207.79/113,765.75
  6. Step 6: Final answer
    x = 86,634.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.