Home / 121,190.13-181,868.24-42,304.37

Finding the Fourth Proportional to 121,190.13, 181,868.24 and 42,304.37

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Solution

The fourth proportional to 121,190.13, 181,868.24 and 42,304.37 is: 63,485.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,190.13 : 181,868.24 = 42,304.37 : x
  2. Step 2: Convert to fraction form
    121,190.13/181,868.24 = 42,304.37/x
  3. Step 3: Cross multiply
    121,190.13x = 181,868.24 × 42,304.37
  4. Step 4: Simplify right side
    121,190.13x = 7,693,821,316.21
  5. Step 5: Solve for x
    x = 7,693,821,316.21/121,190.13
  6. Step 6: Final answer
    x = 63,485.54

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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.