Home / 219,363.33-328,997.46-128,117.75

Finding the Fourth Proportional to 219,363.33, 328,997.46 and 128,117.75

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Solution

The fourth proportional to 219,363.33, 328,997.46 and 128,117.75 is: 192,148.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,363.33 : 328,997.46 = 128,117.75 : x
  2. Step 2: Convert to fraction form
    219,363.33/328,997.46 = 128,117.75/x
  3. Step 3: Cross multiply
    219,363.33x = 328,997.46 × 128,117.75
  4. Step 4: Simplify right side
    219,363.33x = 42,150,412,685.93
  5. Step 5: Solve for x
    x = 42,150,412,685.93/219,363.33
  6. Step 6: Final answer
    x = 192,148.85

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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.