Home / 207,401.28-311,151.60-67,160.16

Finding the Fourth Proportional to 207,401.28, 311,151.60 and 67,160.16

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Solution

The fourth proportional to 207,401.28, 311,151.60 and 67,160.16 is: 100,756.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,401.28 : 311,151.60 = 67,160.16 : x
  2. Step 2: Convert to fraction form
    207,401.28/311,151.60 = 67,160.16/x
  3. Step 3: Cross multiply
    207,401.28x = 311,151.60 × 67,160.16
  4. Step 4: Simplify right side
    207,401.28x = 20,896,991,240.26
  5. Step 5: Solve for x
    x = 20,896,991,240.26/207,401.28
  6. Step 6: Final answer
    x = 100,756.33

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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.