Home / 170,878.20-256,317.30-99,727.80

Finding the Fourth Proportional to 170,878.20, 256,317.30 and 99,727.80

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Solution

The fourth proportional to 170,878.20, 256,317.30 and 99,727.80 is: 149,591.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,878.20 : 256,317.30 = 99,727.80 : x
  2. Step 2: Convert to fraction form
    170,878.20/256,317.30 = 99,727.80/x
  3. Step 3: Cross multiply
    170,878.20x = 256,317.30 × 99,727.80
  4. Step 4: Simplify right side
    170,878.20x = 25,561,960,430.94
  5. Step 5: Solve for x
    x = 25,561,960,430.94/170,878.20
  6. Step 6: Final answer
    x = 149,591.70

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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.