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Finding the Fourth Proportional to 115,374.12, 159,224.31 and 64,396.82

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Solution

The fourth proportional to 115,374.12, 159,224.31 and 64,396.82 is: 88,872.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,374.12 : 159,224.31 = 64,396.82 : x
  2. Step 2: Convert to fraction form
    115,374.12/159,224.31 = 64,396.82/x
  3. Step 3: Cross multiply
    115,374.12x = 159,224.31 × 64,396.82
  4. Step 4: Simplify right side
    115,374.12x = 10,253,539,447.64
  5. Step 5: Solve for x
    x = 10,253,539,447.64/115,374.12
  6. Step 6: Final answer
    x = 88,872.09

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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.