Home / 156,011.27-215,227.16-91,447.77

Finding the Fourth Proportional to 156,011.27, 215,227.16 and 91,447.77

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Solution

The fourth proportional to 156,011.27, 215,227.16 and 91,447.77 is: 126,157.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,011.27 : 215,227.16 = 91,447.77 : x
  2. Step 2: Convert to fraction form
    156,011.27/215,227.16 = 91,447.77/x
  3. Step 3: Cross multiply
    156,011.27x = 215,227.16 × 91,447.77
  4. Step 4: Simplify right side
    156,011.27x = 19,682,043,368.19
  5. Step 5: Solve for x
    x = 19,682,043,368.19/156,011.27
  6. Step 6: Final answer
    x = 126,157.83

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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.