Home / 121,310.44-181,985.46-38,185

Finding the Fourth Proportional to 121,310.44, 181,985.46 and 38,185

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Solution

The fourth proportional to 121,310.44, 181,985.46 and 38,185 is: 57,283.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,310.44 : 181,985.46 = 38,185 : x
  2. Step 2: Convert to fraction form
    121,310.44/181,985.46 = 38,185/x
  3. Step 3: Cross multiply
    121,310.44x = 181,985.46 × 38,185
  4. Step 4: Simplify right side
    121,310.44x = 6,949,114,790.10
  5. Step 5: Solve for x
    x = 6,949,114,790.10/121,310.44
  6. Step 6: Final answer
    x = 57,283.73

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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.