Home / 143,200.64-197,619.60-79,544.36

Finding the Fourth Proportional to 143,200.64, 197,619.60 and 79,544.36

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Solution

The fourth proportional to 143,200.64, 197,619.60 and 79,544.36 is: 109,772.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,200.64 : 197,619.60 = 79,544.36 : x
  2. Step 2: Convert to fraction form
    143,200.64/197,619.60 = 79,544.36/x
  3. Step 3: Cross multiply
    143,200.64x = 197,619.60 × 79,544.36
  4. Step 4: Simplify right side
    143,200.64x = 15,719,524,605.46
  5. Step 5: Solve for x
    x = 15,719,524,605.46/143,200.64
  6. Step 6: Final answer
    x = 109,772.73

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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.