Home / 128,774.88-193,180.14-40,035.60

Finding the Fourth Proportional to 128,774.88, 193,180.14 and 40,035.60

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Solution

The fourth proportional to 128,774.88, 193,180.14 and 40,035.60 is: 60,058.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,774.88 : 193,180.14 = 40,035.60 : x
  2. Step 2: Convert to fraction form
    128,774.88/193,180.14 = 40,035.60/x
  3. Step 3: Cross multiply
    128,774.88x = 193,180.14 × 40,035.60
  4. Step 4: Simplify right side
    128,774.88x = 7,734,082,812.98
  5. Step 5: Solve for x
    x = 7,734,082,812.98/128,774.88
  6. Step 6: Final answer
    x = 60,058.94

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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.