Home / 143,188.56-197,588.64-82,763.12

Finding the Fourth Proportional to 143,188.56, 197,588.64 and 82,763.12

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Solution

The fourth proportional to 143,188.56, 197,588.64 and 82,763.12 is: 114,206.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,188.56 : 197,588.64 = 82,763.12 : x
  2. Step 2: Convert to fraction form
    143,188.56/197,588.64 = 82,763.12/x
  3. Step 3: Cross multiply
    143,188.56x = 197,588.64 × 82,763.12
  4. Step 4: Simplify right side
    143,188.56x = 16,353,052,322.96
  5. Step 5: Solve for x
    x = 16,353,052,322.96/143,188.56
  6. Step 6: Final answer
    x = 114,206.42

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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.