Home / 141,595.18-195,378.96-81,154.18

Finding the Fourth Proportional to 141,595.18, 195,378.96 and 81,154.18

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Solution

The fourth proportional to 141,595.18, 195,378.96 and 81,154.18 is: 111,979.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,595.18 : 195,378.96 = 81,154.18 : x
  2. Step 2: Convert to fraction form
    141,595.18/195,378.96 = 81,154.18/x
  3. Step 3: Cross multiply
    141,595.18x = 195,378.96 × 81,154.18
  4. Step 4: Simplify right side
    141,595.18x = 15,855,819,288.05
  5. Step 5: Solve for x
    x = 15,855,819,288.05/141,595.18
  6. Step 6: Final answer
    x = 111,979.94

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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.