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Finding the Fourth Proportional to 91,708.66, 137,601.87 and 50,107.06

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Solution

The fourth proportional to 91,708.66, 137,601.87 and 50,107.06 is: 75,181.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,708.66 : 137,601.87 = 50,107.06 : x
  2. Step 2: Convert to fraction form
    91,708.66/137,601.87 = 50,107.06/x
  3. Step 3: Cross multiply
    91,708.66x = 137,601.87 × 50,107.06
  4. Step 4: Simplify right side
    91,708.66x = 6,894,825,156.20
  5. Step 5: Solve for x
    x = 6,894,825,156.20/91,708.66
  6. Step 6: Final answer
    x = 75,181.83

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1.5x scale

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.