Home / 143,537.12-197,875.89-100,963.52

Finding the Fourth Proportional to 143,537.12, 197,875.89 and 100,963.52

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Solution

The fourth proportional to 143,537.12, 197,875.89 and 100,963.52 is: 139,185.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,537.12 : 197,875.89 = 100,963.52 : x
  2. Step 2: Convert to fraction form
    143,537.12/197,875.89 = 100,963.52/x
  3. Step 3: Cross multiply
    143,537.12x = 197,875.89 × 100,963.52
  4. Step 4: Simplify right side
    143,537.12x = 19,978,245,388.15
  5. Step 5: Solve for x
    x = 19,978,245,388.15/143,537.12
  6. Step 6: Final answer
    x = 139,185.22

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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.