Home / 150,125.40-207,171.26-82,141.58

Finding the Fourth Proportional to 150,125.40, 207,171.26 and 82,141.58

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Solution

The fourth proportional to 150,125.40, 207,171.26 and 82,141.58 is: 113,354.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,125.40 : 207,171.26 = 82,141.58 : x
  2. Step 2: Convert to fraction form
    150,125.40/207,171.26 = 82,141.58/x
  3. Step 3: Cross multiply
    150,125.40x = 207,171.26 × 82,141.58
  4. Step 4: Simplify right side
    150,125.40x = 17,017,374,626.99
  5. Step 5: Solve for x
    x = 17,017,374,626.99/150,125.40
  6. Step 6: Final answer
    x = 113,354.40

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1.5x scale

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.