Home / 121,243.61-181,780.85-53,739.02

Finding the Fourth Proportional to 121,243.61, 181,780.85 and 53,739.02

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Solution

The fourth proportional to 121,243.61, 181,780.85 and 53,739.02 is: 80,571.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,243.61 : 181,780.85 = 53,739.02 : x
  2. Step 2: Convert to fraction form
    121,243.61/181,780.85 = 53,739.02/x
  3. Step 3: Cross multiply
    121,243.61x = 181,780.85 × 53,739.02
  4. Step 4: Simplify right side
    121,243.61x = 9,768,723,556.17
  5. Step 5: Solve for x
    x = 9,768,723,556.17/121,243.61
  6. Step 6: Final answer
    x = 80,571.04

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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.