Home / 102,825.40-154,286.70-43,711.60

Finding the Fourth Proportional to 102,825.40, 154,286.70 and 43,711.60

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Solution

The fourth proportional to 102,825.40, 154,286.70 and 43,711.60 is: 65,588.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,825.40 : 154,286.70 = 43,711.60 : x
  2. Step 2: Convert to fraction form
    102,825.40/154,286.70 = 43,711.60/x
  3. Step 3: Cross multiply
    102,825.40x = 154,286.70 × 43,711.60
  4. Step 4: Simplify right side
    102,825.40x = 6,744,118,515.72
  5. Step 5: Solve for x
    x = 6,744,118,515.72/102,825.40
  6. Step 6: Final answer
    x = 65,588.06

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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.