Home / 121,131.21-181,703.09-36,884.87

Finding the Fourth Proportional to 121,131.21, 181,703.09 and 36,884.87

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Solution

The fourth proportional to 121,131.21, 181,703.09 and 36,884.87 is: 55,329.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,131.21 : 181,703.09 = 36,884.87 : x
  2. Step 2: Convert to fraction form
    121,131.21/181,703.09 = 36,884.87/x
  3. Step 3: Cross multiply
    121,131.21x = 181,703.09 × 36,884.87
  4. Step 4: Simplify right side
    121,131.21x = 6,702,094,036.95
  5. Step 5: Solve for x
    x = 6,702,094,036.95/121,131.21
  6. Step 6: Final answer
    x = 55,329.21

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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.