Home / 141,213.78-194,876.08-80,780.69

Finding the Fourth Proportional to 141,213.78, 194,876.08 and 80,780.69

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Solution

The fourth proportional to 141,213.78, 194,876.08 and 80,780.69 is: 111,477.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,213.78 : 194,876.08 = 80,780.69 : x
  2. Step 2: Convert to fraction form
    141,213.78/194,876.08 = 80,780.69/x
  3. Step 3: Cross multiply
    141,213.78x = 194,876.08 × 80,780.69
  4. Step 4: Simplify right side
    141,213.78x = 15,742,224,492.13
  5. Step 5: Solve for x
    x = 15,742,224,492.13/141,213.78
  6. Step 6: Final answer
    x = 111,477.96

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1.5x scale

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.