Home / 220,134.88-303,768.93-129,494.26

Finding the Fourth Proportional to 220,134.88, 303,768.93 and 129,494.26

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Solution

The fourth proportional to 220,134.88, 303,768.93 and 129,494.26 is: 178,691.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,134.88 : 303,768.93 = 129,494.26 : x
  2. Step 2: Convert to fraction form
    220,134.88/303,768.93 = 129,494.26/x
  3. Step 3: Cross multiply
    220,134.88x = 303,768.93 × 129,494.26
  4. Step 4: Simplify right side
    220,134.88x = 39,336,332,801.34
  5. Step 5: Solve for x
    x = 39,336,332,801.34/220,134.88
  6. Step 6: Final answer
    x = 178,691.96

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1.5x scale

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.