Home / 129,209.68-193,814.52-40,470.13

Finding the Fourth Proportional to 129,209.68, 193,814.52 and 40,470.13

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Solution

The fourth proportional to 129,209.68, 193,814.52 and 40,470.13 is: 60,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,209.68 : 193,814.52 = 40,470.13 : x
  2. Step 2: Convert to fraction form
    129,209.68/193,814.52 = 40,470.13/x
  3. Step 3: Cross multiply
    129,209.68x = 193,814.52 × 40,470.13
  4. Step 4: Simplify right side
    129,209.68x = 7,843,698,820.29
  5. Step 5: Solve for x
    x = 7,843,698,820.29/129,209.68
  6. Step 6: Final answer
    x = 60,705.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.