Home / 113,221-156,251.46-62,936.20

Finding the Fourth Proportional to 113,221, 156,251.46 and 62,936.20

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Solution

The fourth proportional to 113,221, 156,251.46 and 62,936.20 is: 86,855.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,221 : 156,251.46 = 62,936.20 : x
  2. Step 2: Convert to fraction form
    113,221/156,251.46 = 62,936.20/x
  3. Step 3: Cross multiply
    113,221x = 156,251.46 × 62,936.20
  4. Step 4: Simplify right side
    113,221x = 9,833,873,136.85
  5. Step 5: Solve for x
    x = 9,833,873,136.85/113,221
  6. Step 6: Final answer
    x = 86,855.56

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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.