Home / 149,892.18-206,848.71-81,907.68

Finding the Fourth Proportional to 149,892.18, 206,848.71 and 81,907.68

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Solution

The fourth proportional to 149,892.18, 206,848.71 and 81,907.68 is: 113,031.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,892.18 : 206,848.71 = 81,907.68 : x
  2. Step 2: Convert to fraction form
    149,892.18/206,848.71 = 81,907.68/x
  3. Step 3: Cross multiply
    149,892.18x = 206,848.71 × 81,907.68
  4. Step 4: Simplify right side
    149,892.18x = 16,942,497,947.09
  5. Step 5: Solve for x
    x = 16,942,497,947.09/149,892.18
  6. Step 6: Final answer
    x = 113,031.23

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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.