Home / 102,790.71-154,164.75-39,589.11

Finding the Fourth Proportional to 102,790.71, 154,164.75 and 39,589.11

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Solution

The fourth proportional to 102,790.71, 154,164.75 and 39,589.11 is: 59,375.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,790.71 : 154,164.75 = 39,589.11 : x
  2. Step 2: Convert to fraction form
    102,790.71/154,164.75 = 39,589.11/x
  3. Step 3: Cross multiply
    102,790.71x = 154,164.75 × 39,589.11
  4. Step 4: Simplify right side
    102,790.71x = 6,103,245,245.87
  5. Step 5: Solve for x
    x = 6,103,245,245.87/102,790.71
  6. Step 6: Final answer
    x = 59,375.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.