Home / 109,834.20-164,751.30-91,463.40

Finding the Fourth Proportional to 109,834.20, 164,751.30 and 91,463.40

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Solution

The fourth proportional to 109,834.20, 164,751.30 and 91,463.40 is: 137,195.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,834.20 : 164,751.30 = 91,463.40 : x
  2. Step 2: Convert to fraction form
    109,834.20/164,751.30 = 91,463.40/x
  3. Step 3: Cross multiply
    109,834.20x = 164,751.30 × 91,463.40
  4. Step 4: Simplify right side
    109,834.20x = 15,068,714,052.42
  5. Step 5: Solve for x
    x = 15,068,714,052.42/109,834.20
  6. Step 6: Final answer
    x = 137,195.10

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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.