Home / 215,055.54-296,793.25-129,017.75

Finding the Fourth Proportional to 215,055.54, 296,793.25 and 129,017.75

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Solution

The fourth proportional to 215,055.54, 296,793.25 and 129,017.75 is: 178,054.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,055.54 : 296,793.25 = 129,017.75 : x
  2. Step 2: Convert to fraction form
    215,055.54/296,793.25 = 129,017.75/x
  3. Step 3: Cross multiply
    215,055.54x = 296,793.25 × 129,017.75
  4. Step 4: Simplify right side
    215,055.54x = 38,291,595,523.68
  5. Step 5: Solve for x
    x = 38,291,595,523.68/215,055.54
  6. Step 6: Final answer
    x = 178,054.45

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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.