Home / 156,439.27-215,886.73-84,819.37

Finding the Fourth Proportional to 156,439.27, 215,886.73 and 84,819.37

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Solution

The fourth proportional to 156,439.27, 215,886.73 and 84,819.37 is: 117,051.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,439.27 : 215,886.73 = 84,819.37 : x
  2. Step 2: Convert to fraction form
    156,439.27/215,886.73 = 84,819.37/x
  3. Step 3: Cross multiply
    156,439.27x = 215,886.73 × 84,819.37
  4. Step 4: Simplify right side
    156,439.27x = 18,311,376,429.96
  5. Step 5: Solve for x
    x = 18,311,376,429.96/156,439.27
  6. Step 6: Final answer
    x = 117,051.02

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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.