Home / 126,995.65-190,480.11-52,123.72

Finding the Fourth Proportional to 126,995.65, 190,480.11 and 52,123.72

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Solution

The fourth proportional to 126,995.65, 190,480.11 and 52,123.72 is: 78,180.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,995.65 : 190,480.11 = 52,123.72 : x
  2. Step 2: Convert to fraction form
    126,995.65/190,480.11 = 52,123.72/x
  3. Step 3: Cross multiply
    126,995.65x = 190,480.11 × 52,123.72
  4. Step 4: Simplify right side
    126,995.65x = 9,928,531,919.21
  5. Step 5: Solve for x
    x = 9,928,531,919.21/126,995.65
  6. Step 6: Final answer
    x = 78,180.09

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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.