Home / 126,890.80-190,349.16-43,774

Finding the Fourth Proportional to 126,890.80, 190,349.16 and 43,774

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Solution

The fourth proportional to 126,890.80, 190,349.16 and 43,774 is: 65,665.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,890.80 : 190,349.16 = 43,774 : x
  2. Step 2: Convert to fraction form
    126,890.80/190,349.16 = 43,774/x
  3. Step 3: Cross multiply
    126,890.80x = 190,349.16 × 43,774
  4. Step 4: Simplify right side
    126,890.80x = 8,332,344,129.84
  5. Step 5: Solve for x
    x = 8,332,344,129.84/126,890.80
  6. Step 6: Final answer
    x = 65,665.47

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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.