Home / 149,200.51-205,906.04-82,132.51

Finding the Fourth Proportional to 149,200.51, 205,906.04 and 82,132.51

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Solution

The fourth proportional to 149,200.51, 205,906.04 and 82,132.51 is: 113,348.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,200.51 : 205,906.04 = 82,132.51 : x
  2. Step 2: Convert to fraction form
    149,200.51/205,906.04 = 82,132.51/x
  3. Step 3: Cross multiply
    149,200.51x = 205,906.04 × 82,132.51
  4. Step 4: Simplify right side
    149,200.51x = 16,911,579,478.70
  5. Step 5: Solve for x
    x = 16,911,579,478.70/149,200.51
  6. Step 6: Final answer
    x = 113,348.00

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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.