Home / 156,610.30-216,122.36-84,990.33

Finding the Fourth Proportional to 156,610.30, 216,122.36 and 84,990.33

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Solution

The fourth proportional to 156,610.30, 216,122.36 and 84,990.33 is: 117,286.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,610.30 : 216,122.36 = 84,990.33 : x
  2. Step 2: Convert to fraction form
    156,610.30/216,122.36 = 84,990.33/x
  3. Step 3: Cross multiply
    156,610.30x = 216,122.36 × 84,990.33
  4. Step 4: Simplify right side
    156,610.30x = 18,368,310,696.78
  5. Step 5: Solve for x
    x = 18,368,310,696.78/156,610.30
  6. Step 6: Final answer
    x = 117,286.73

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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.