Home / 121,169.84-181,777.80-38,087.60

Finding the Fourth Proportional to 121,169.84, 181,777.80 and 38,087.60

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Solution

The fourth proportional to 121,169.84, 181,777.80 and 38,087.60 is: 57,138.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,169.84 : 181,777.80 = 38,087.60 : x
  2. Step 2: Convert to fraction form
    121,169.84/181,777.80 = 38,087.60/x
  3. Step 3: Cross multiply
    121,169.84x = 181,777.80 × 38,087.60
  4. Step 4: Simplify right side
    121,169.84x = 6,923,480,135.28
  5. Step 5: Solve for x
    x = 6,923,480,135.28/121,169.84
  6. Step 6: Final answer
    x = 57,138.64

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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.