Home / 121,051.87-181,578.71-42,165.97

Finding the Fourth Proportional to 121,051.87, 181,578.71 and 42,165.97

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Solution

The fourth proportional to 121,051.87, 181,578.71 and 42,165.97 is: 63,249.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,051.87 : 181,578.71 = 42,165.97 : x
  2. Step 2: Convert to fraction form
    121,051.87/181,578.71 = 42,165.97/x
  3. Step 3: Cross multiply
    121,051.87x = 181,578.71 × 42,165.97
  4. Step 4: Simplify right side
    121,051.87x = 7,656,442,089.97
  5. Step 5: Solve for x
    x = 7,656,442,089.97/121,051.87
  6. Step 6: Final answer
    x = 63,249.27

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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.