Home / 156,296.88-215,676.95-91,759.32

Finding the Fourth Proportional to 156,296.88, 215,676.95 and 91,759.32

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Solution

The fourth proportional to 156,296.88, 215,676.95 and 91,759.32 is: 126,620.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,296.88 : 215,676.95 = 91,759.32 : x
  2. Step 2: Convert to fraction form
    156,296.88/215,676.95 = 91,759.32/x
  3. Step 3: Cross multiply
    156,296.88x = 215,676.95 × 91,759.32
  4. Step 4: Simplify right side
    156,296.88x = 19,790,369,812.88
  5. Step 5: Solve for x
    x = 19,790,369,812.88/156,296.88
  6. Step 6: Final answer
    x = 126,620.38

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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.