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Finding the Fourth Proportional to 115,464.83, 159,327.41 and 64,480.40

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Solution

The fourth proportional to 115,464.83, 159,327.41 and 64,480.40 is: 88,975.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,464.83 : 159,327.41 = 64,480.40 : x
  2. Step 2: Convert to fraction form
    115,464.83/159,327.41 = 64,480.40/x
  3. Step 3: Cross multiply
    115,464.83x = 159,327.41 × 64,480.40
  4. Step 4: Simplify right side
    115,464.83x = 10,273,494,008.73
  5. Step 5: Solve for x
    x = 10,273,494,008.73/115,464.83
  6. Step 6: Final answer
    x = 88,975.09

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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.