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Finding the Fourth Proportional to 128,475.19, 192,602.04 and 49,644.73

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Solution

The fourth proportional to 128,475.19, 192,602.04 and 49,644.73 is: 74,424.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,475.19 : 192,602.04 = 49,644.73 : x
  2. Step 2: Convert to fraction form
    128,475.19/192,602.04 = 49,644.73/x
  3. Step 3: Cross multiply
    128,475.19x = 192,602.04 × 49,644.73
  4. Step 4: Simplify right side
    128,475.19x = 9,561,676,273.25
  5. Step 5: Solve for x
    x = 9,561,676,273.25/128,475.19
  6. Step 6: Final answer
    x = 74,424.30

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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.