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Finding the Fourth Proportional to 159,617.82, 239,426.73 and 54,437.70

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Solution

The fourth proportional to 159,617.82, 239,426.73 and 54,437.70 is: 81,656.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,617.82 : 239,426.73 = 54,437.70 : x
  2. Step 2: Convert to fraction form
    159,617.82/239,426.73 = 54,437.70/x
  3. Step 3: Cross multiply
    159,617.82x = 239,426.73 × 54,437.70
  4. Step 4: Simplify right side
    159,617.82x = 13,033,840,499.72
  5. Step 5: Solve for x
    x = 13,033,840,499.72/159,617.82
  6. Step 6: Final answer
    x = 81,656.55

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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.