Home / 113,778.03-170,686.89-38,905.68

Finding the Fourth Proportional to 113,778.03, 170,686.89 and 38,905.68

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Solution

The fourth proportional to 113,778.03, 170,686.89 and 38,905.68 is: 58,365.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,778.03 : 170,686.89 = 38,905.68 : x
  2. Step 2: Convert to fraction form
    113,778.03/170,686.89 = 38,905.68/x
  3. Step 3: Cross multiply
    113,778.03x = 170,686.89 × 38,905.68
  4. Step 4: Simplify right side
    113,778.03x = 6,640,689,522.54
  5. Step 5: Solve for x
    x = 6,640,689,522.54/113,778.03
  6. Step 6: Final answer
    x = 58,365.31

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1.5x scale

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.