Home / 131,170.19-196,761.44-42,430.61

Finding the Fourth Proportional to 131,170.19, 196,761.44 and 42,430.61

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Solution

The fourth proportional to 131,170.19, 196,761.44 and 42,430.61 is: 63,647.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,170.19 : 196,761.44 = 42,430.61 : x
  2. Step 2: Convert to fraction form
    131,170.19/196,761.44 = 42,430.61/x
  3. Step 3: Cross multiply
    131,170.19x = 196,761.44 × 42,430.61
  4. Step 4: Simplify right side
    131,170.19x = 8,348,707,923.68
  5. Step 5: Solve for x
    x = 8,348,707,923.68/131,170.19
  6. Step 6: Final answer
    x = 63,647.91

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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.