Home / 142,428.69-196,601.03-82,023.39

Finding the Fourth Proportional to 142,428.69, 196,601.03 and 82,023.39

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Solution

The fourth proportional to 142,428.69, 196,601.03 and 82,023.39 is: 113,220.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,428.69 : 196,601.03 = 82,023.39 : x
  2. Step 2: Convert to fraction form
    142,428.69/196,601.03 = 82,023.39/x
  3. Step 3: Cross multiply
    142,428.69x = 196,601.03 × 82,023.39
  4. Step 4: Simplify right side
    142,428.69x = 16,125,883,163.15
  5. Step 5: Solve for x
    x = 16,125,883,163.15/142,428.69
  6. Step 6: Final answer
    x = 113,220.75

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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.