Home / 111,934.92-154,481.08-83,591.40

Finding the Fourth Proportional to 111,934.92, 154,481.08 and 83,591.40

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Solution

The fourth proportional to 111,934.92, 154,481.08 and 83,591.40 is: 115,364.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,934.92 : 154,481.08 = 83,591.40 : x
  2. Step 2: Convert to fraction form
    111,934.92/154,481.08 = 83,591.40/x
  3. Step 3: Cross multiply
    111,934.92x = 154,481.08 × 83,591.40
  4. Step 4: Simplify right side
    111,934.92x = 12,913,289,750.71
  5. Step 5: Solve for x
    x = 12,913,289,750.71/111,934.92
  6. Step 6: Final answer
    x = 115,364.26

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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.