Home / 100,167.05-138,230.55-54,847.82

Finding the Fourth Proportional to 100,167.05, 138,230.55 and 54,847.82

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Solution

The fourth proportional to 100,167.05, 138,230.55 and 54,847.82 is: 75,690.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,167.05 : 138,230.55 = 54,847.82 : x
  2. Step 2: Convert to fraction form
    100,167.05/138,230.55 = 54,847.82/x
  3. Step 3: Cross multiply
    100,167.05x = 138,230.55 × 54,847.82
  4. Step 4: Simplify right side
    100,167.05x = 7,581,644,670.48
  5. Step 5: Solve for x
    x = 7,581,644,670.48/100,167.05
  6. Step 6: Final answer
    x = 75,690.00

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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.