Home / 121,190.30-181,811.51-60,433.68

Finding the Fourth Proportional to 121,190.30, 181,811.51 and 60,433.68

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Solution

The fourth proportional to 121,190.30, 181,811.51 and 60,433.68 is: 90,663.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,190.30 : 181,811.51 = 60,433.68 : x
  2. Step 2: Convert to fraction form
    121,190.30/181,811.51 = 60,433.68/x
  3. Step 3: Cross multiply
    121,190.30x = 181,811.51 × 60,433.68
  4. Step 4: Simplify right side
    121,190.30x = 10,987,538,084.95
  5. Step 5: Solve for x
    x = 10,987,538,084.95/121,190.30
  6. Step 6: Final answer
    x = 90,663.51

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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.