Home / 128,927.97-193,359.15-40,164.93

Finding the Fourth Proportional to 128,927.97, 193,359.15 and 40,164.93

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Solution

The fourth proportional to 128,927.97, 193,359.15 and 40,164.93 is: 60,237.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,927.97 : 193,359.15 = 40,164.93 : x
  2. Step 2: Convert to fraction form
    128,927.97/193,359.15 = 40,164.93/x
  3. Step 3: Cross multiply
    128,927.97x = 193,359.15 × 40,164.93
  4. Step 4: Simplify right side
    128,927.97x = 7,766,256,724.61
  5. Step 5: Solve for x
    x = 7,766,256,724.61/128,927.97
  6. Step 6: Final answer
    x = 60,237.18

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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.