Home / 127,922.70-191,884.05-85,932.30

Finding the Fourth Proportional to 127,922.70, 191,884.05 and 85,932.30

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Solution

The fourth proportional to 127,922.70, 191,884.05 and 85,932.30 is: 128,898.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,922.70 : 191,884.05 = 85,932.30 : x
  2. Step 2: Convert to fraction form
    127,922.70/191,884.05 = 85,932.30/x
  3. Step 3: Cross multiply
    127,922.70x = 191,884.05 × 85,932.30
  4. Step 4: Simplify right side
    127,922.70x = 16,489,037,749.82
  5. Step 5: Solve for x
    x = 16,489,037,749.82/127,922.70
  6. Step 6: Final answer
    x = 128,898.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.