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Finding the Fourth Proportional to 141,155.75, 194,769.78 and 79,901.63

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Solution

The fourth proportional to 141,155.75, 194,769.78 and 79,901.63 is: 110,250.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,155.75 : 194,769.78 = 79,901.63 : x
  2. Step 2: Convert to fraction form
    141,155.75/194,769.78 = 79,901.63/x
  3. Step 3: Cross multiply
    141,155.75x = 194,769.78 × 79,901.63
  4. Step 4: Simplify right side
    141,155.75x = 15,562,422,896.74
  5. Step 5: Solve for x
    x = 15,562,422,896.74/141,155.75
  6. Step 6: Final answer
    x = 110,250.01

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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.