Home / 149,948.82-206,929.34-81,966.06

Finding the Fourth Proportional to 149,948.82, 206,929.34 and 81,966.06

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Solution

The fourth proportional to 149,948.82, 206,929.34 and 81,966.06 is: 113,113.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,948.82 : 206,929.34 = 81,966.06 : x
  2. Step 2: Convert to fraction form
    149,948.82/206,929.34 = 81,966.06/x
  3. Step 3: Cross multiply
    149,948.82x = 206,929.34 × 81,966.06
  4. Step 4: Simplify right side
    149,948.82x = 16,961,182,288.37
  5. Step 5: Solve for x
    x = 16,961,182,288.37/149,948.82
  6. Step 6: Final answer
    x = 113,113.14

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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.