Home / 126,995.61-190,454.52-87,804.57

Finding the Fourth Proportional to 126,995.61, 190,454.52 and 87,804.57

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Solution

The fourth proportional to 126,995.61, 190,454.52 and 87,804.57 is: 131,679.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,995.61 : 190,454.52 = 87,804.57 : x
  2. Step 2: Convert to fraction form
    126,995.61/190,454.52 = 87,804.57/x
  3. Step 3: Cross multiply
    126,995.61x = 190,454.52 × 87,804.57
  4. Step 4: Simplify right side
    126,995.61x = 16,722,777,233.16
  5. Step 5: Solve for x
    x = 16,722,777,233.16/126,995.61
  6. Step 6: Final answer
    x = 131,679.96

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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.