Home / 141,769.20-195,650.33-78,106.98

Finding the Fourth Proportional to 141,769.20, 195,650.33 and 78,106.98

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Solution

The fourth proportional to 141,769.20, 195,650.33 and 78,106.98 is: 107,792.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,769.20 : 195,650.33 = 78,106.98 : x
  2. Step 2: Convert to fraction form
    141,769.20/195,650.33 = 78,106.98/x
  3. Step 3: Cross multiply
    141,769.20x = 195,650.33 × 78,106.98
  4. Step 4: Simplify right side
    141,769.20x = 15,281,656,021.77
  5. Step 5: Solve for x
    x = 15,281,656,021.77/141,769.20
  6. Step 6: Final answer
    x = 107,792.50

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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.