Home / 121,095.68-181,660.56-42,198.56

Finding the Fourth Proportional to 121,095.68, 181,660.56 and 42,198.56

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Solution

The fourth proportional to 121,095.68, 181,660.56 and 42,198.56 is: 63,303.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,095.68 : 181,660.56 = 42,198.56 : x
  2. Step 2: Convert to fraction form
    121,095.68/181,660.56 = 42,198.56/x
  3. Step 3: Cross multiply
    121,095.68x = 181,660.56 × 42,198.56
  4. Step 4: Simplify right side
    121,095.68x = 7,665,814,040.79
  5. Step 5: Solve for x
    x = 7,665,814,040.79/121,095.68
  6. Step 6: Final answer
    x = 63,303.78

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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.