Home / 142,489.80-196,632.36-82,059.12

Finding the Fourth Proportional to 142,489.80, 196,632.36 and 82,059.12

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Solution

The fourth proportional to 142,489.80, 196,632.36 and 82,059.12 is: 113,239.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,489.80 : 196,632.36 = 82,059.12 : x
  2. Step 2: Convert to fraction form
    142,489.80/196,632.36 = 82,059.12/x
  3. Step 3: Cross multiply
    142,489.80x = 196,632.36 × 82,059.12
  4. Step 4: Simplify right side
    142,489.80x = 16,135,478,425.12
  5. Step 5: Solve for x
    x = 16,135,478,425.12/142,489.80
  6. Step 6: Final answer
    x = 113,239.53

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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.