Home / 138,300.42-190,481.85-119,404.74

Finding the Fourth Proportional to 138,300.42, 190,481.85 and 119,404.74

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Solution

The fourth proportional to 138,300.42, 190,481.85 and 119,404.74 is: 164,456.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,300.42 : 190,481.85 = 119,404.74 : x
  2. Step 2: Convert to fraction form
    138,300.42/190,481.85 = 119,404.74/x
  3. Step 3: Cross multiply
    138,300.42x = 190,481.85 × 119,404.74
  4. Step 4: Simplify right side
    138,300.42x = 22,744,435,773.97
  5. Step 5: Solve for x
    x = 22,744,435,773.97/138,300.42
  6. Step 6: Final answer
    x = 164,456.74

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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.