Home / 150,116.28-207,153-82,134.60

Finding the Fourth Proportional to 150,116.28, 207,153 and 82,134.60

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Solution

The fourth proportional to 150,116.28, 207,153 and 82,134.60 is: 113,341.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,116.28 : 207,153 = 82,134.60 : x
  2. Step 2: Convert to fraction form
    150,116.28/207,153 = 82,134.60/x
  3. Step 3: Cross multiply
    150,116.28x = 207,153 × 82,134.60
  4. Step 4: Simplify right side
    150,116.28x = 17,014,428,793.80
  5. Step 5: Solve for x
    x = 17,014,428,793.80/150,116.28
  6. Step 6: Final answer
    x = 113,341.66

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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.