Home / 104,895.90-157,344-80,076.87

Finding the Fourth Proportional to 104,895.90, 157,344 and 80,076.87

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Solution

The fourth proportional to 104,895.90, 157,344 and 80,076.87 is: 120,115.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,895.90 : 157,344 = 80,076.87 : x
  2. Step 2: Convert to fraction form
    104,895.90/157,344 = 80,076.87/x
  3. Step 3: Cross multiply
    104,895.90x = 157,344 × 80,076.87
  4. Step 4: Simplify right side
    104,895.90x = 12,599,615,033.28
  5. Step 5: Solve for x
    x = 12,599,615,033.28/104,895.90
  6. Step 6: Final answer
    x = 120,115.42

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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.