Home / 129,102.69-178,111.92-95,191.65

Finding the Fourth Proportional to 129,102.69, 178,111.92 and 95,191.65

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Solution

The fourth proportional to 129,102.69, 178,111.92 and 95,191.65 is: 131,327.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,102.69 : 178,111.92 = 95,191.65 : x
  2. Step 2: Convert to fraction form
    129,102.69/178,111.92 = 95,191.65/x
  3. Step 3: Cross multiply
    129,102.69x = 178,111.92 × 95,191.65
  4. Step 4: Simplify right side
    129,102.69x = 16,954,767,549.47
  5. Step 5: Solve for x
    x = 16,954,767,549.47/129,102.69
  6. Step 6: Final answer
    x = 131,327.76

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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.