Home / 149,644.77-206,514.17-81,666.14

Finding the Fourth Proportional to 149,644.77, 206,514.17 and 81,666.14

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Solution

The fourth proportional to 149,644.77, 206,514.17 and 81,666.14 is: 112,701.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,644.77 : 206,514.17 = 81,666.14 : x
  2. Step 2: Convert to fraction form
    149,644.77/206,514.17 = 81,666.14/x
  3. Step 3: Cross multiply
    149,644.77x = 206,514.17 × 81,666.14
  4. Step 4: Simplify right side
    149,644.77x = 16,865,215,119.20
  5. Step 5: Solve for x
    x = 16,865,215,119.20/149,644.77
  6. Step 6: Final answer
    x = 112,701.67

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1.5x scale

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.