Home / 128,849.06-193,291.82-40,111.53

Finding the Fourth Proportional to 128,849.06, 193,291.82 and 40,111.53

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Solution

The fourth proportional to 128,849.06, 193,291.82 and 40,111.53 is: 60,172.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,849.06 : 193,291.82 = 40,111.53 : x
  2. Step 2: Convert to fraction form
    128,849.06/193,291.82 = 40,111.53/x
  3. Step 3: Cross multiply
    128,849.06x = 193,291.82 × 40,111.53
  4. Step 4: Simplify right side
    128,849.06x = 7,753,230,436.13
  5. Step 5: Solve for x
    x = 7,753,230,436.13/128,849.06
  6. Step 6: Final answer
    x = 60,172.97

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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.