Home / 113,786.10-170,679.15-42,708.60

Finding the Fourth Proportional to 113,786.10, 170,679.15 and 42,708.60

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Solution

The fourth proportional to 113,786.10, 170,679.15 and 42,708.60 is: 64,062.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,786.10 : 170,679.15 = 42,708.60 : x
  2. Step 2: Convert to fraction form
    113,786.10/170,679.15 = 42,708.60/x
  3. Step 3: Cross multiply
    113,786.10x = 170,679.15 × 42,708.60
  4. Step 4: Simplify right side
    113,786.10x = 7,289,467,545.69
  5. Step 5: Solve for x
    x = 7,289,467,545.69/113,786.10
  6. Step 6: Final answer
    x = 64,062.90

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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.