Home / 100,214.96-138,321.60-57,799.04

Finding the Fourth Proportional to 100,214.96, 138,321.60 and 57,799.04

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Solution

The fourth proportional to 100,214.96, 138,321.60 and 57,799.04 is: 79,777.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,214.96 : 138,321.60 = 57,799.04 : x
  2. Step 2: Convert to fraction form
    100,214.96/138,321.60 = 57,799.04/x
  3. Step 3: Cross multiply
    100,214.96x = 138,321.60 × 57,799.04
  4. Step 4: Simplify right side
    100,214.96x = 7,994,855,691.26
  5. Step 5: Solve for x
    x = 7,994,855,691.26/100,214.96
  6. Step 6: Final answer
    x = 79,777.07

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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.