Home / 149,750.63-206,654.82-81,767.57

Finding the Fourth Proportional to 149,750.63, 206,654.82 and 81,767.57

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Solution

The fourth proportional to 149,750.63, 206,654.82 and 81,767.57 is: 112,838.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,750.63 : 206,654.82 = 81,767.57 : x
  2. Step 2: Convert to fraction form
    149,750.63/206,654.82 = 81,767.57/x
  3. Step 3: Cross multiply
    149,750.63x = 206,654.82 × 81,767.57
  4. Step 4: Simplify right side
    149,750.63x = 16,897,661,426.91
  5. Step 5: Solve for x
    x = 16,897,661,426.91/149,750.63
  6. Step 6: Final answer
    x = 112,838.67

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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.