Home / 143,037.39-197,400.84-79,375.19

Finding the Fourth Proportional to 143,037.39, 197,400.84 and 79,375.19

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Solution

The fourth proportional to 143,037.39, 197,400.84 and 79,375.19 is: 109,542.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,037.39 : 197,400.84 = 79,375.19 : x
  2. Step 2: Convert to fraction form
    143,037.39/197,400.84 = 79,375.19/x
  3. Step 3: Cross multiply
    143,037.39x = 197,400.84 × 79,375.19
  4. Step 4: Simplify right side
    143,037.39x = 15,668,728,194.16
  5. Step 5: Solve for x
    x = 15,668,728,194.16/143,037.39
  6. Step 6: Final answer
    x = 109,542.89

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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.