Home / 121,074.48-181,661.76-53,571.12

Finding the Fourth Proportional to 121,074.48, 181,661.76 and 53,571.12

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Solution

The fourth proportional to 121,074.48, 181,661.76 and 53,571.12 is: 80,378.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,074.48 : 181,661.76 = 53,571.12 : x
  2. Step 2: Convert to fraction form
    121,074.48/181,661.76 = 53,571.12/x
  3. Step 3: Cross multiply
    121,074.48x = 181,661.76 × 53,571.12
  4. Step 4: Simplify right side
    121,074.48x = 9,731,823,944.37
  5. Step 5: Solve for x
    x = 9,731,823,944.37/121,074.48
  6. Step 6: Final answer
    x = 80,378.82

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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.