Home / 149,864.74-206,810.93-81,880.25

Finding the Fourth Proportional to 149,864.74, 206,810.93 and 81,880.25

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Solution

The fourth proportional to 149,864.74, 206,810.93 and 81,880.25 is: 112,993.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,864.74 : 206,810.93 = 81,880.25 : x
  2. Step 2: Convert to fraction form
    149,864.74/206,810.93 = 81,880.25/x
  3. Step 3: Cross multiply
    149,864.74x = 206,810.93 × 81,880.25
  4. Step 4: Simplify right side
    149,864.74x = 16,933,730,241.73
  5. Step 5: Solve for x
    x = 16,933,730,241.73/149,864.74
  6. Step 6: Final answer
    x = 112,993.43

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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.