Home / 115,682.85-159,650.46-64,700.33

Finding the Fourth Proportional to 115,682.85, 159,650.46 and 64,700.33

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Solution

The fourth proportional to 115,682.85, 159,650.46 and 64,700.33 is: 89,290.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,682.85 : 159,650.46 = 64,700.33 : x
  2. Step 2: Convert to fraction form
    115,682.85/159,650.46 = 64,700.33/x
  3. Step 3: Cross multiply
    115,682.85x = 159,650.46 × 64,700.33
  4. Step 4: Simplify right side
    115,682.85x = 10,329,436,648.40
  5. Step 5: Solve for x
    x = 10,329,436,648.40/115,682.85
  6. Step 6: Final answer
    x = 89,290.99

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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.