Home / 143,131.52-197,530.44-82,713.26

Finding the Fourth Proportional to 143,131.52, 197,530.44 and 82,713.26

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Solution

The fourth proportional to 143,131.52, 197,530.44 and 82,713.26 is: 114,149.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,131.52 : 197,530.44 = 82,713.26 : x
  2. Step 2: Convert to fraction form
    143,131.52/197,530.44 = 82,713.26/x
  3. Step 3: Cross multiply
    143,131.52x = 197,530.44 × 82,713.26
  4. Step 4: Simplify right side
    143,131.52x = 16,338,386,641.63
  5. Step 5: Solve for x
    x = 16,338,386,641.63/143,131.52
  6. Step 6: Final answer
    x = 114,149.47

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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.