Home / 150,109.11-207,152.10-82,124.60

Finding the Fourth Proportional to 150,109.11, 207,152.10 and 82,124.60

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Solution

The fourth proportional to 150,109.11, 207,152.10 and 82,124.60 is: 113,332.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,109.11 : 207,152.10 = 82,124.60 : x
  2. Step 2: Convert to fraction form
    150,109.11/207,152.10 = 82,124.60/x
  3. Step 3: Cross multiply
    150,109.11x = 207,152.10 × 82,124.60
  4. Step 4: Simplify right side
    150,109.11x = 17,012,282,315.90
  5. Step 5: Solve for x
    x = 17,012,282,315.90/150,109.11
  6. Step 6: Final answer
    x = 113,332.78

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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.