Home / 142,825.30-197,092.12-82,415.38

Finding the Fourth Proportional to 142,825.30, 197,092.12 and 82,415.38

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Solution

The fourth proportional to 142,825.30, 197,092.12 and 82,415.38 is: 113,729.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,825.30 : 197,092.12 = 82,415.38 : x
  2. Step 2: Convert to fraction form
    142,825.30/197,092.12 = 82,415.38/x
  3. Step 3: Cross multiply
    142,825.30x = 197,092.12 × 82,415.38
  4. Step 4: Simplify right side
    142,825.30x = 16,243,421,964.81
  5. Step 5: Solve for x
    x = 16,243,421,964.81/142,825.30
  6. Step 6: Final answer
    x = 113,729.30

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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.