Home / 126,878.46-190,306.89-51,977.22

Finding the Fourth Proportional to 126,878.46, 190,306.89 and 51,977.22

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Solution

The fourth proportional to 126,878.46, 190,306.89 and 51,977.22 is: 77,961.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,878.46 : 190,306.89 = 51,977.22 : x
  2. Step 2: Convert to fraction form
    126,878.46/190,306.89 = 51,977.22/x
  3. Step 3: Cross multiply
    126,878.46x = 190,306.89 × 51,977.22
  4. Step 4: Simplify right side
    126,878.46x = 9,891,623,089.05
  5. Step 5: Solve for x
    x = 9,891,623,089.05/126,878.46
  6. Step 6: Final answer
    x = 77,961.41

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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.