Home / 113,877.60-157,170.31-66,158.62

Finding the Fourth Proportional to 113,877.60, 157,170.31 and 66,158.62

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Solution

The fourth proportional to 113,877.60, 157,170.31 and 66,158.62 is: 91,310.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,877.60 : 157,170.31 = 66,158.62 : x
  2. Step 2: Convert to fraction form
    113,877.60/157,170.31 = 66,158.62/x
  3. Step 3: Cross multiply
    113,877.60x = 157,170.31 × 66,158.62
  4. Step 4: Simplify right side
    113,877.60x = 10,398,171,419.44
  5. Step 5: Solve for x
    x = 10,398,171,419.44/113,877.60
  6. Step 6: Final answer
    x = 91,310.07

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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.