Home / 141,849.70-195,752.59-78,188.87

Finding the Fourth Proportional to 141,849.70, 195,752.59 and 78,188.87

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Solution

The fourth proportional to 141,849.70, 195,752.59 and 78,188.87 is: 107,900.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,849.70 : 195,752.59 = 78,188.87 : x
  2. Step 2: Convert to fraction form
    141,849.70/195,752.59 = 78,188.87/x
  3. Step 3: Cross multiply
    141,849.70x = 195,752.59 × 78,188.87
  4. Step 4: Simplify right side
    141,849.70x = 15,305,674,105.58
  5. Step 5: Solve for x
    x = 15,305,674,105.58/141,849.70
  6. Step 6: Final answer
    x = 107,900.65

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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.