Home / 121,278.07-181,581.21-61,986.07

Finding the Fourth Proportional to 121,278.07, 181,581.21 and 61,986.07

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Solution

The fourth proportional to 121,278.07, 181,581.21 and 61,986.07 is: 92,807.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,278.07 : 181,581.21 = 61,986.07 : x
  2. Step 2: Convert to fraction form
    121,278.07/181,581.21 = 61,986.07/x
  3. Step 3: Cross multiply
    121,278.07x = 181,581.21 × 61,986.07
  4. Step 4: Simplify right side
    121,278.07x = 11,255,505,593.74
  5. Step 5: Solve for x
    x = 11,255,505,593.74/121,278.07
  6. Step 6: Final answer
    x = 92,807.43

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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.