Home / 100,913.03-139,249.52-62,144.70

Finding the Fourth Proportional to 100,913.03, 139,249.52 and 62,144.70

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Solution

The fourth proportional to 100,913.03, 139,249.52 and 62,144.70 is: 85,753.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,913.03 : 139,249.52 = 62,144.70 : x
  2. Step 2: Convert to fraction form
    100,913.03/139,249.52 = 62,144.70/x
  3. Step 3: Cross multiply
    100,913.03x = 139,249.52 × 62,144.70
  4. Step 4: Simplify right side
    100,913.03x = 8,653,618,949.30
  5. Step 5: Solve for x
    x = 8,653,618,949.30/100,913.03
  6. Step 6: Final answer
    x = 85,753.24

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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.