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Finding the Fourth Proportional to 159,165.42, 219,679.48 and 91,227.93

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Solution

The fourth proportional to 159,165.42, 219,679.48 and 91,227.93 is: 125,912.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,165.42 : 219,679.48 = 91,227.93 : x
  2. Step 2: Convert to fraction form
    159,165.42/219,679.48 = 91,227.93/x
  3. Step 3: Cross multiply
    159,165.42x = 219,679.48 × 91,227.93
  4. Step 4: Simplify right side
    159,165.42x = 20,040,905,624.24
  5. Step 5: Solve for x
    x = 20,040,905,624.24/159,165.42
  6. Step 6: Final answer
    x = 125,912.44

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1.5x scale

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.