Home / 149,451.39-206,241.53-81,468.27

Finding the Fourth Proportional to 149,451.39, 206,241.53 and 81,468.27

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Solution

The fourth proportional to 149,451.39, 206,241.53 and 81,468.27 is: 112,425.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,451.39 : 206,241.53 = 81,468.27 : x
  2. Step 2: Convert to fraction form
    149,451.39/206,241.53 = 81,468.27/x
  3. Step 3: Cross multiply
    149,451.39x = 206,241.53 × 81,468.27
  4. Step 4: Simplify right side
    149,451.39x = 16,802,140,243.91
  5. Step 5: Solve for x
    x = 16,802,140,243.91/149,451.39
  6. Step 6: Final answer
    x = 112,425.45

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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.