Home / 113,235.40-169,920.30-43,121.80

Finding the Fourth Proportional to 113,235.40, 169,920.30 and 43,121.80

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Solution

The fourth proportional to 113,235.40, 169,920.30 and 43,121.80 is: 64,708.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,235.40 : 169,920.30 = 43,121.80 : x
  2. Step 2: Convert to fraction form
    113,235.40/169,920.30 = 43,121.80/x
  3. Step 3: Cross multiply
    113,235.40x = 169,920.30 × 43,121.80
  4. Step 4: Simplify right side
    113,235.40x = 7,327,269,192.54
  5. Step 5: Solve for x
    x = 7,327,269,192.54/113,235.40
  6. Step 6: Final answer
    x = 64,708.29

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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.