Home / 121,860-182,816.88-51,799.20

Finding the Fourth Proportional to 121,860, 182,816.88 and 51,799.20

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Solution

The fourth proportional to 121,860, 182,816.88 and 51,799.20 is: 77,710.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,860 : 182,816.88 = 51,799.20 : x
  2. Step 2: Convert to fraction form
    121,860/182,816.88 = 51,799.20/x
  3. Step 3: Cross multiply
    121,860x = 182,816.88 × 51,799.20
  4. Step 4: Simplify right side
    121,860x = 9,469,768,130.50
  5. Step 5: Solve for x
    x = 9,469,768,130.50/121,860
  6. Step 6: Final answer
    x = 77,710.23

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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.