Home / 149,740.62-206,636.15-81,760.46

Finding the Fourth Proportional to 149,740.62, 206,636.15 and 81,760.46

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Solution

The fourth proportional to 149,740.62, 206,636.15 and 81,760.46 is: 112,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,740.62 : 206,636.15 = 81,760.46 : x
  2. Step 2: Convert to fraction form
    149,740.62/206,636.15 = 81,760.46/x
  3. Step 3: Cross multiply
    149,740.62x = 206,636.15 × 81,760.46
  4. Step 4: Simplify right side
    149,740.62x = 16,894,666,676.63
  5. Step 5: Solve for x
    x = 16,894,666,676.63/149,740.62
  6. Step 6: Final answer
    x = 112,826.21

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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.