Home / 442,735.80-664,032.42-127,120.92

Finding the Fourth Proportional to 442,735.80, 664,032.42 and 127,120.92

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Solution

The fourth proportional to 442,735.80, 664,032.42 and 127,120.92 is: 190,660.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,735.80 : 664,032.42 = 127,120.92 : x
  2. Step 2: Convert to fraction form
    442,735.80/664,032.42 = 127,120.92/x
  3. Step 3: Cross multiply
    442,735.80x = 664,032.42 × 127,120.92
  4. Step 4: Simplify right side
    442,735.80x = 84,412,412,140.23
  5. Step 5: Solve for x
    x = 84,412,412,140.23/442,735.80
  6. Step 6: Final answer
    x = 190,660.91

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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.