Home / 100,214.82-138,298.44-54,892.80

Finding the Fourth Proportional to 100,214.82, 138,298.44 and 54,892.80

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Solution

The fourth proportional to 100,214.82, 138,298.44 and 54,892.80 is: 75,753.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,214.82 : 138,298.44 = 54,892.80 : x
  2. Step 2: Convert to fraction form
    100,214.82/138,298.44 = 54,892.80/x
  3. Step 3: Cross multiply
    100,214.82x = 138,298.44 × 54,892.80
  4. Step 4: Simplify right side
    100,214.82x = 7,591,588,607.23
  5. Step 5: Solve for x
    x = 7,591,588,607.23/100,214.82
  6. Step 6: Final answer
    x = 75,753.15

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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.