Home / 101,179.23-139,625.07-55,854.56

Finding the Fourth Proportional to 101,179.23, 139,625.07 and 55,854.56

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Solution

The fourth proportional to 101,179.23, 139,625.07 and 55,854.56 is: 77,078.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,179.23 : 139,625.07 = 55,854.56 : x
  2. Step 2: Convert to fraction form
    101,179.23/139,625.07 = 55,854.56/x
  3. Step 3: Cross multiply
    101,179.23x = 139,625.07 × 55,854.56
  4. Step 4: Simplify right side
    101,179.23x = 7,798,696,989.43
  5. Step 5: Solve for x
    x = 7,798,696,989.43/101,179.23
  6. Step 6: Final answer
    x = 77,078.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.