Home / 99,144-136,935.36-67,257.54

Finding the Fourth Proportional to 99,144, 136,935.36 and 67,257.54

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Solution

The fourth proportional to 99,144, 136,935.36 and 67,257.54 is: 92,894.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,144 : 136,935.36 = 67,257.54 : x
  2. Step 2: Convert to fraction form
    99,144/136,935.36 = 67,257.54/x
  3. Step 3: Cross multiply
    99,144x = 136,935.36 × 67,257.54
  4. Step 4: Simplify right side
    99,144x = 9,209,935,452.61
  5. Step 5: Solve for x
    x = 9,209,935,452.61/99,144
  6. Step 6: Final answer
    x = 92,894.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.