Home / 128,006.46-192,009.65-34,512.21

Finding the Fourth Proportional to 128,006.46, 192,009.65 and 34,512.21

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Solution

The fourth proportional to 128,006.46, 192,009.65 and 34,512.21 is: 51,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,006.46 : 192,009.65 = 34,512.21 : x
  2. Step 2: Convert to fraction form
    128,006.46/192,009.65 = 34,512.21/x
  3. Step 3: Cross multiply
    128,006.46x = 192,009.65 × 34,512.21
  4. Step 4: Simplify right side
    128,006.46x = 6,626,677,190.27
  5. Step 5: Solve for x
    x = 6,626,677,190.27/128,006.46
  6. Step 6: Final answer
    x = 51,768.30

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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.