Home / 121,233.68-181,933.60-42,347.84

Finding the Fourth Proportional to 121,233.68, 181,933.60 and 42,347.84

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Solution

The fourth proportional to 121,233.68, 181,933.60 and 42,347.84 is: 63,550.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,233.68 : 181,933.60 = 42,347.84 : x
  2. Step 2: Convert to fraction form
    121,233.68/181,933.60 = 42,347.84/x
  3. Step 3: Cross multiply
    121,233.68x = 181,933.60 × 42,347.84
  4. Step 4: Simplify right side
    121,233.68x = 7,704,494,983.42
  5. Step 5: Solve for x
    x = 7,704,494,983.42/121,233.68
  6. Step 6: Final answer
    x = 63,550.78

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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.