Home / 121,775.97-182,686.64-42,940.29

Finding the Fourth Proportional to 121,775.97, 182,686.64 and 42,940.29

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Solution

The fourth proportional to 121,775.97, 182,686.64 and 42,940.29 is: 64,418.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,775.97 : 182,686.64 = 42,940.29 : x
  2. Step 2: Convert to fraction form
    121,775.97/182,686.64 = 42,940.29/x
  3. Step 3: Cross multiply
    121,775.97x = 182,686.64 × 42,940.29
  4. Step 4: Simplify right side
    121,775.97x = 7,844,617,086.02
  5. Step 5: Solve for x
    x = 7,844,617,086.02/121,775.97
  6. Step 6: Final answer
    x = 64,418.43

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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.