Home / 140,055.49-193,268.86-79,617.75

Finding the Fourth Proportional to 140,055.49, 193,268.86 and 79,617.75

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Solution

The fourth proportional to 140,055.49, 193,268.86 and 79,617.75 is: 109,868.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,055.49 : 193,268.86 = 79,617.75 : x
  2. Step 2: Convert to fraction form
    140,055.49/193,268.86 = 79,617.75/x
  3. Step 3: Cross multiply
    140,055.49x = 193,268.86 × 79,617.75
  4. Step 4: Simplify right side
    140,055.49x = 15,387,631,778.27
  5. Step 5: Solve for x
    x = 15,387,631,778.27/140,055.49
  6. Step 6: Final answer
    x = 109,868.11

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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.