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Finding the Fourth Proportional to 121,232.64, 181,844.67 and 36,989.40

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Solution

The fourth proportional to 121,232.64, 181,844.67 and 36,989.40 is: 55,482.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,232.64 : 181,844.67 = 36,989.40 : x
  2. Step 2: Convert to fraction form
    121,232.64/181,844.67 = 36,989.40/x
  3. Step 3: Cross multiply
    121,232.64x = 181,844.67 × 36,989.40
  4. Step 4: Simplify right side
    121,232.64x = 6,726,325,236.50
  5. Step 5: Solve for x
    x = 6,726,325,236.50/121,232.64
  6. Step 6: Final answer
    x = 55,482.79

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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.