Home / 143,497.31-215,249.51-68,625.36

Finding the Fourth Proportional to 143,497.31, 215,249.51 and 68,625.36

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Solution

The fourth proportional to 143,497.31, 215,249.51 and 68,625.36 is: 102,939.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,497.31 : 215,249.51 = 68,625.36 : x
  2. Step 2: Convert to fraction form
    143,497.31/215,249.51 = 68,625.36/x
  3. Step 3: Cross multiply
    143,497.31x = 215,249.51 × 68,625.36
  4. Step 4: Simplify right side
    143,497.31x = 14,771,575,285.14
  5. Step 5: Solve for x
    x = 14,771,575,285.14/143,497.31
  6. Step 6: Final answer
    x = 102,939.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.