Home / 112,216.27-154,857.67-61,915.39

Finding the Fourth Proportional to 112,216.27, 154,857.67 and 61,915.39

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Solution

The fourth proportional to 112,216.27, 154,857.67 and 61,915.39 is: 85,442.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,216.27 : 154,857.67 = 61,915.39 : x
  2. Step 2: Convert to fraction form
    112,216.27/154,857.67 = 61,915.39/x
  3. Step 3: Cross multiply
    112,216.27x = 154,857.67 × 61,915.39
  4. Step 4: Simplify right side
    112,216.27x = 9,588,073,032.54
  5. Step 5: Solve for x
    x = 9,588,073,032.54/112,216.27
  6. Step 6: Final answer
    x = 85,442.81

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1.5x scale

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.