Home / 149,944.89-206,929.51-81,966.47

Finding the Fourth Proportional to 149,944.89, 206,929.51 and 81,966.47

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Solution

The fourth proportional to 149,944.89, 206,929.51 and 81,966.47 is: 113,116.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,944.89 : 206,929.51 = 81,966.47 : x
  2. Step 2: Convert to fraction form
    149,944.89/206,929.51 = 81,966.47/x
  3. Step 3: Cross multiply
    149,944.89x = 206,929.51 × 81,966.47
  4. Step 4: Simplify right side
    149,944.89x = 16,961,281,785.94
  5. Step 5: Solve for x
    x = 16,961,281,785.94/149,944.89
  6. Step 6: Final answer
    x = 113,116.77

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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.