Home / 146,408.10-219,612.15-91,112.10

Finding the Fourth Proportional to 146,408.10, 219,612.15 and 91,112.10

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Solution

The fourth proportional to 146,408.10, 219,612.15 and 91,112.10 is: 136,668.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,408.10 : 219,612.15 = 91,112.10 : x
  2. Step 2: Convert to fraction form
    146,408.10/219,612.15 = 91,112.10/x
  3. Step 3: Cross multiply
    146,408.10x = 219,612.15 × 91,112.10
  4. Step 4: Simplify right side
    146,408.10x = 20,009,324,172.02
  5. Step 5: Solve for x
    x = 20,009,324,172.02/146,408.10
  6. Step 6: Final answer
    x = 136,668.15

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1.5x scale

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.