Home / 121,091.68-181,668.24-37,986.40

Finding the Fourth Proportional to 121,091.68, 181,668.24 and 37,986.40

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Solution

The fourth proportional to 121,091.68, 181,668.24 and 37,986.40 is: 56,989.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,091.68 : 181,668.24 = 37,986.40 : x
  2. Step 2: Convert to fraction form
    121,091.68/181,668.24 = 37,986.40/x
  3. Step 3: Cross multiply
    121,091.68x = 181,668.24 × 37,986.40
  4. Step 4: Simplify right side
    121,091.68x = 6,900,922,431.94
  5. Step 5: Solve for x
    x = 6,900,922,431.94/121,091.68
  6. Step 6: Final answer
    x = 56,989.24

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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.