Home / 126,747.84-190,121.52-51,902.88

Finding the Fourth Proportional to 126,747.84, 190,121.52 and 51,902.88

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Solution

The fourth proportional to 126,747.84, 190,121.52 and 51,902.88 is: 77,854.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,747.84 : 190,121.52 = 51,902.88 : x
  2. Step 2: Convert to fraction form
    126,747.84/190,121.52 = 51,902.88/x
  3. Step 3: Cross multiply
    126,747.84x = 190,121.52 × 51,902.88
  4. Step 4: Simplify right side
    126,747.84x = 9,867,854,437.98
  5. Step 5: Solve for x
    x = 9,867,854,437.98/126,747.84
  6. Step 6: Final answer
    x = 77,854.22

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1.5x scale

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.