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Finding the Fourth Proportional to 112,124, 154,742.04 and 61,823

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Solution

The fourth proportional to 112,124, 154,742.04 and 61,823 is: 85,321.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,124 : 154,742.04 = 61,823 : x
  2. Step 2: Convert to fraction form
    112,124/154,742.04 = 61,823/x
  3. Step 3: Cross multiply
    112,124x = 154,742.04 × 61,823
  4. Step 4: Simplify right side
    112,124x = 9,566,617,138.92
  5. Step 5: Solve for x
    x = 9,566,617,138.92/112,124
  6. Step 6: Final answer
    x = 85,321.76

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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.