Home / 156,003.90-215,285.40-84,383.88

Finding the Fourth Proportional to 156,003.90, 215,285.40 and 84,383.88

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Solution

The fourth proportional to 156,003.90, 215,285.40 and 84,383.88 is: 116,449.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,003.90 : 215,285.40 = 84,383.88 : x
  2. Step 2: Convert to fraction form
    156,003.90/215,285.40 = 84,383.88/x
  3. Step 3: Cross multiply
    156,003.90x = 215,285.40 × 84,383.88
  4. Step 4: Simplify right side
    156,003.90x = 18,166,617,359.35
  5. Step 5: Solve for x
    x = 18,166,617,359.35/156,003.90
  6. Step 6: Final answer
    x = 116,449.76

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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.