Home / 121,161.44-181,729.19-42,277.16

Finding the Fourth Proportional to 121,161.44, 181,729.19 and 42,277.16

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Solution

The fourth proportional to 121,161.44, 181,729.19 and 42,277.16 is: 63,411.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,161.44 : 181,729.19 = 42,277.16 : x
  2. Step 2: Convert to fraction form
    121,161.44/181,729.19 = 42,277.16/x
  3. Step 3: Cross multiply
    121,161.44x = 181,729.19 × 42,277.16
  4. Step 4: Simplify right side
    121,161.44x = 7,682,994,042.30
  5. Step 5: Solve for x
    x = 7,682,994,042.30/121,161.44
  6. Step 6: Final answer
    x = 63,411.21

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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.