Home / 156,098.88-215,416.44-84,478.92

Finding the Fourth Proportional to 156,098.88, 215,416.44 and 84,478.92

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Solution

The fourth proportional to 156,098.88, 215,416.44 and 84,478.92 is: 116,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,098.88 : 215,416.44 = 84,478.92 : x
  2. Step 2: Convert to fraction form
    156,098.88/215,416.44 = 84,478.92/x
  3. Step 3: Cross multiply
    156,098.88x = 215,416.44 × 84,478.92
  4. Step 4: Simplify right side
    156,098.88x = 18,198,147,393.63
  5. Step 5: Solve for x
    x = 18,198,147,393.63/156,098.88
  6. Step 6: Final answer
    x = 116,580.90

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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.