Home / 156,017.00-215,245.66-115,279.34

Finding the Fourth Proportional to 156,017.00, 215,245.66 and 115,279.34

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Solution

The fourth proportional to 156,017.00, 215,245.66 and 115,279.34 is: 159,042.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,017.00 : 215,245.66 = 115,279.34 : x
  2. Step 2: Convert to fraction form
    156,017.00/215,245.66 = 115,279.34/x
  3. Step 3: Cross multiply
    156,017.00x = 215,245.66 × 115,279.34
  4. Step 4: Simplify right side
    156,017.00x = 24,813,376,258.24
  5. Step 5: Solve for x
    x = 24,813,376,258.24/156,017.00
  6. Step 6: Final answer
    x = 159,042.78

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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.