Home / 156,610.28-216,122.34-84,990.32

Finding the Fourth Proportional to 156,610.28, 216,122.34 and 84,990.32

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Solution

The fourth proportional to 156,610.28, 216,122.34 and 84,990.32 is: 117,286.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,610.28 : 216,122.34 = 84,990.32 : x
  2. Step 2: Convert to fraction form
    156,610.28/216,122.34 = 84,990.32/x
  3. Step 3: Cross multiply
    156,610.28x = 216,122.34 × 84,990.32
  4. Step 4: Simplify right side
    156,610.28x = 18,368,306,835.75
  5. Step 5: Solve for x
    x = 18,368,306,835.75/156,610.28
  6. Step 6: Final answer
    x = 117,286.72

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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.