Home / 121,132.47-181,994.36-114,418.38

Finding the Fourth Proportional to 121,132.47, 181,994.36 and 114,418.38

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Solution

The fourth proportional to 121,132.47, 181,994.36 and 114,418.38 is: 171,906.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,132.47 : 181,994.36 = 114,418.38 : x
  2. Step 2: Convert to fraction form
    121,132.47/181,994.36 = 114,418.38/x
  3. Step 3: Cross multiply
    121,132.47x = 181,994.36 × 114,418.38
  4. Step 4: Simplify right side
    121,132.47x = 20,823,499,840.34
  5. Step 5: Solve for x
    x = 20,823,499,840.34/121,132.47
  6. Step 6: Final answer
    x = 171,906.84

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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.