Home / 127,993.04-192,032.76-80,643.68

Finding the Fourth Proportional to 127,993.04, 192,032.76 and 80,643.68

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Solution

The fourth proportional to 127,993.04, 192,032.76 and 80,643.68 is: 120,992.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,993.04 : 192,032.76 = 80,643.68 : x
  2. Step 2: Convert to fraction form
    127,993.04/192,032.76 = 80,643.68/x
  3. Step 3: Cross multiply
    127,993.04x = 192,032.76 × 80,643.68
  4. Step 4: Simplify right side
    127,993.04x = 15,486,228,446.96
  5. Step 5: Solve for x
    x = 15,486,228,446.96/127,993.04
  6. Step 6: Final answer
    x = 120,992.74

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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.