Home / 111,416.29-167,036.78-55,217.77

Finding the Fourth Proportional to 111,416.29, 167,036.78 and 55,217.77

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Solution

The fourth proportional to 111,416.29, 167,036.78 and 55,217.77 is: 82,783.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,416.29 : 167,036.78 = 55,217.77 : x
  2. Step 2: Convert to fraction form
    111,416.29/167,036.78 = 55,217.77/x
  3. Step 3: Cross multiply
    111,416.29x = 167,036.78 × 55,217.77
  4. Step 4: Simplify right side
    111,416.29x = 9,223,398,223.49
  5. Step 5: Solve for x
    x = 9,223,398,223.49/111,416.29
  6. Step 6: Final answer
    x = 82,783.21

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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.