Home / 121,072.56-181,661.07-46,215.18

Finding the Fourth Proportional to 121,072.56, 181,661.07 and 46,215.18

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Solution

The fourth proportional to 121,072.56, 181,661.07 and 46,215.18 is: 69,342.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,072.56 : 181,661.07 = 46,215.18 : x
  2. Step 2: Convert to fraction form
    121,072.56/181,661.07 = 46,215.18/x
  3. Step 3: Cross multiply
    121,072.56x = 181,661.07 × 46,215.18
  4. Step 4: Simplify right side
    121,072.56x = 8,395,499,049.04
  5. Step 5: Solve for x
    x = 8,395,499,049.04/121,072.56
  6. Step 6: Final answer
    x = 69,342.71

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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.