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Finding the Fourth Proportional to 113,857.56, 157,156.80 and 66,132.36

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Solution

The fourth proportional to 113,857.56, 157,156.80 and 66,132.36 is: 91,282.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,857.56 : 157,156.80 = 66,132.36 : x
  2. Step 2: Convert to fraction form
    113,857.56/157,156.80 = 66,132.36/x
  3. Step 3: Cross multiply
    113,857.56x = 157,156.80 × 66,132.36
  4. Step 4: Simplify right side
    113,857.56x = 10,393,150,074.05
  5. Step 5: Solve for x
    x = 10,393,150,074.05/113,857.56
  6. Step 6: Final answer
    x = 91,282.04

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.