Home / 113,969.23-157,272.94-66,218.82

Finding the Fourth Proportional to 113,969.23, 157,272.94 and 66,218.82

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Solution

The fourth proportional to 113,969.23, 157,272.94 and 66,218.82 is: 91,379.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,969.23 : 157,272.94 = 66,218.82 : x
  2. Step 2: Convert to fraction form
    113,969.23/157,272.94 = 66,218.82/x
  3. Step 3: Cross multiply
    113,969.23x = 157,272.94 × 66,218.82
  4. Step 4: Simplify right side
    113,969.23x = 10,414,427,997.73
  5. Step 5: Solve for x
    x = 10,414,427,997.73/113,969.23
  6. Step 6: Final answer
    x = 91,379.30

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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.