Home / 123,617.56-186,352.85-115,378.29

Finding the Fourth Proportional to 123,617.56, 186,352.85 and 115,378.29

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Solution

The fourth proportional to 123,617.56, 186,352.85 and 115,378.29 is: 173,932.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,617.56 : 186,352.85 = 115,378.29 : x
  2. Step 2: Convert to fraction form
    123,617.56/186,352.85 = 115,378.29/x
  3. Step 3: Cross multiply
    123,617.56x = 186,352.85 × 115,378.29
  4. Step 4: Simplify right side
    123,617.56x = 21,501,073,458.07
  5. Step 5: Solve for x
    x = 21,501,073,458.07/123,617.56
  6. Step 6: Final answer
    x = 173,932.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.