Home / 100,436.70-150,654.96-38,107.20

Finding the Fourth Proportional to 100,436.70, 150,654.96 and 38,107.20

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Solution

The fourth proportional to 100,436.70, 150,654.96 and 38,107.20 is: 57,160.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,436.70 : 150,654.96 = 38,107.20 : x
  2. Step 2: Convert to fraction form
    100,436.70/150,654.96 = 38,107.20/x
  3. Step 3: Cross multiply
    100,436.70x = 150,654.96 × 38,107.20
  4. Step 4: Simplify right side
    100,436.70x = 5,741,038,691.71
  5. Step 5: Solve for x
    x = 5,741,038,691.71/100,436.70
  6. Step 6: Final answer
    x = 57,160.77

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1.5x scale

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.