Home / 102,930.20-154,409.70-43,765.40

Finding the Fourth Proportional to 102,930.20, 154,409.70 and 43,765.40

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Solution

The fourth proportional to 102,930.20, 154,409.70 and 43,765.40 is: 65,654.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,930.20 : 154,409.70 = 43,765.40 : x
  2. Step 2: Convert to fraction form
    102,930.20/154,409.70 = 43,765.40/x
  3. Step 3: Cross multiply
    102,930.20x = 154,409.70 × 43,765.40
  4. Step 4: Simplify right side
    102,930.20x = 6,757,802,284.38
  5. Step 5: Solve for x
    x = 6,757,802,284.38/102,930.20
  6. Step 6: Final answer
    x = 65,654.22

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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.