Home / 142,807.36-197,029.13-82,369.90

Finding the Fourth Proportional to 142,807.36, 197,029.13 and 82,369.90

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Solution

The fourth proportional to 142,807.36, 197,029.13 and 82,369.90 is: 113,644.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,807.36 : 197,029.13 = 82,369.90 : x
  2. Step 2: Convert to fraction form
    142,807.36/197,029.13 = 82,369.90/x
  3. Step 3: Cross multiply
    142,807.36x = 197,029.13 × 82,369.90
  4. Step 4: Simplify right side
    142,807.36x = 16,229,269,323.34
  5. Step 5: Solve for x
    x = 16,229,269,323.34/142,807.36
  6. Step 6: Final answer
    x = 113,644.49

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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.