Home / 111,623.92-154,043.78-60,636.65

Finding the Fourth Proportional to 111,623.92, 154,043.78 and 60,636.65

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Solution

The fourth proportional to 111,623.92, 154,043.78 and 60,636.65 is: 83,680.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,623.92 : 154,043.78 = 60,636.65 : x
  2. Step 2: Convert to fraction form
    111,623.92/154,043.78 = 60,636.65/x
  3. Step 3: Cross multiply
    111,623.92x = 154,043.78 × 60,636.65
  4. Step 4: Simplify right side
    111,623.92x = 9,340,697,699.13
  5. Step 5: Solve for x
    x = 9,340,697,699.13/111,623.92
  6. Step 6: Final answer
    x = 83,680.07

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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.