Home / 121,216.39-181,824.72-36,972.09

Finding the Fourth Proportional to 121,216.39, 181,824.72 and 36,972.09

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Solution

The fourth proportional to 121,216.39, 181,824.72 and 36,972.09 is: 55,458.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,216.39 : 181,824.72 = 36,972.09 : x
  2. Step 2: Convert to fraction form
    121,216.39/181,824.72 = 36,972.09/x
  3. Step 3: Cross multiply
    121,216.39x = 181,824.72 × 36,972.09
  4. Step 4: Simplify right side
    121,216.39x = 6,722,439,912.06
  5. Step 5: Solve for x
    x = 6,722,439,912.06/121,216.39
  6. Step 6: Final answer
    x = 55,458.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.