Home / 143,195.12-197,587.32-82,754.10

Finding the Fourth Proportional to 143,195.12, 197,587.32 and 82,754.10

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Solution

The fourth proportional to 143,195.12, 197,587.32 and 82,754.10 is: 114,187.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,195.12 : 197,587.32 = 82,754.10 : x
  2. Step 2: Convert to fraction form
    143,195.12/197,587.32 = 82,754.10/x
  3. Step 3: Cross multiply
    143,195.12x = 197,587.32 × 82,754.10
  4. Step 4: Simplify right side
    143,195.12x = 16,351,161,538.87
  5. Step 5: Solve for x
    x = 16,351,161,538.87/143,195.12
  6. Step 6: Final answer
    x = 114,187.98

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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.