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Finding the Fourth Proportional to 170,133.54, 255,028.76 and 106,998.78

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Solution

The fourth proportional to 170,133.54, 255,028.76 and 106,998.78 is: 160,390.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,133.54 : 255,028.76 = 106,998.78 : x
  2. Step 2: Convert to fraction form
    170,133.54/255,028.76 = 106,998.78/x
  3. Step 3: Cross multiply
    170,133.54x = 255,028.76 × 106,998.78
  4. Step 4: Simplify right side
    170,133.54x = 27,287,766,184.91
  5. Step 5: Solve for x
    x = 27,287,766,184.91/170,133.54
  6. Step 6: Final answer
    x = 160,390.28

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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.