Home / 207,088.36-310,621.38-66,847

Finding the Fourth Proportional to 207,088.36, 310,621.38 and 66,847

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Solution

The fourth proportional to 207,088.36, 310,621.38 and 66,847 is: 100,266.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,088.36 : 310,621.38 = 66,847 : x
  2. Step 2: Convert to fraction form
    207,088.36/310,621.38 = 66,847/x
  3. Step 3: Cross multiply
    207,088.36x = 310,621.38 × 66,847
  4. Step 4: Simplify right side
    207,088.36x = 20,764,107,388.86
  5. Step 5: Solve for x
    x = 20,764,107,388.86/207,088.36
  6. Step 6: Final answer
    x = 100,266.90

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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.