Home / 137,829.90-190,199.37-80,472.41

Finding the Fourth Proportional to 137,829.90, 190,199.37 and 80,472.41

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Solution

The fourth proportional to 137,829.90, 190,199.37 and 80,472.41 is: 111,048.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,829.90 : 190,199.37 = 80,472.41 : x
  2. Step 2: Convert to fraction form
    137,829.90/190,199.37 = 80,472.41/x
  3. Step 3: Cross multiply
    137,829.90x = 190,199.37 × 80,472.41
  4. Step 4: Simplify right side
    137,829.90x = 15,305,801,748.40
  5. Step 5: Solve for x
    x = 15,305,801,748.40/137,829.90
  6. Step 6: Final answer
    x = 111,048.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.