Home / 100,886.55-139,213.14-62,118.23

Finding the Fourth Proportional to 100,886.55, 139,213.14 and 62,118.23

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Solution

The fourth proportional to 100,886.55, 139,213.14 and 62,118.23 is: 85,716.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,886.55 : 139,213.14 = 62,118.23 : x
  2. Step 2: Convert to fraction form
    100,886.55/139,213.14 = 62,118.23/x
  3. Step 3: Cross multiply
    100,886.55x = 139,213.14 × 62,118.23
  4. Step 4: Simplify right side
    100,886.55x = 8,647,673,153.48
  5. Step 5: Solve for x
    x = 8,647,673,153.48/100,886.55
  6. Step 6: Final answer
    x = 85,716.81

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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.