Home / 143,368.62-197,827.02-82,105.28

Finding the Fourth Proportional to 143,368.62, 197,827.02 and 82,105.28

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Solution

The fourth proportional to 143,368.62, 197,827.02 and 82,105.28 is: 113,292.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,368.62 : 197,827.02 = 82,105.28 : x
  2. Step 2: Convert to fraction form
    143,368.62/197,827.02 = 82,105.28/x
  3. Step 3: Cross multiply
    143,368.62x = 197,827.02 × 82,105.28
  4. Step 4: Simplify right side
    143,368.62x = 16,242,642,868.67
  5. Step 5: Solve for x
    x = 16,242,642,868.67/143,368.62
  6. Step 6: Final answer
    x = 113,292.87

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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.