Home / 121,145.36-181,738.80-41,174.87

Finding the Fourth Proportional to 121,145.36, 181,738.80 and 41,174.87

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Solution

The fourth proportional to 121,145.36, 181,738.80 and 41,174.87 is: 61,769.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,145.36 : 181,738.80 = 41,174.87 : x
  2. Step 2: Convert to fraction form
    121,145.36/181,738.80 = 41,174.87/x
  3. Step 3: Cross multiply
    121,145.36x = 181,738.80 × 41,174.87
  4. Step 4: Simplify right side
    121,145.36x = 7,483,071,463.96
  5. Step 5: Solve for x
    x = 7,483,071,463.96/121,145.36
  6. Step 6: Final answer
    x = 61,769.36

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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.