Home / 128,849.56-193,292.57-40,112.03

Finding the Fourth Proportional to 128,849.56, 193,292.57 and 40,112.03

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Solution

The fourth proportional to 128,849.56, 193,292.57 and 40,112.03 is: 60,173.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,849.56 : 193,292.57 = 40,112.03 : x
  2. Step 2: Convert to fraction form
    128,849.56/193,292.57 = 40,112.03/x
  3. Step 3: Cross multiply
    128,849.56x = 193,292.57 × 40,112.03
  4. Step 4: Simplify right side
    128,849.56x = 7,753,357,166.06
  5. Step 5: Solve for x
    x = 7,753,357,166.06/128,849.56
  6. Step 6: Final answer
    x = 60,173.72

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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.