Home / 128,152.30-192,213.86-34,650.76

Finding the Fourth Proportional to 128,152.30, 192,213.86 and 34,650.76

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Solution

The fourth proportional to 128,152.30, 192,213.86 and 34,650.76 is: 51,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,152.30 : 192,213.86 = 34,650.76 : x
  2. Step 2: Convert to fraction form
    128,152.30/192,213.86 = 34,650.76/x
  3. Step 3: Cross multiply
    128,152.30x = 192,213.86 × 34,650.76
  4. Step 4: Simplify right side
    128,152.30x = 6,660,356,331.53
  5. Step 5: Solve for x
    x = 6,660,356,331.53/128,152.30
  6. Step 6: Final answer
    x = 51,972.20

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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.