Home / 143,252.43-214,775.72-67,308.15

Finding the Fourth Proportional to 143,252.43, 214,775.72 and 67,308.15

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Solution

The fourth proportional to 143,252.43, 214,775.72 and 67,308.15 is: 100,913.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,252.43 : 214,775.72 = 67,308.15 : x
  2. Step 2: Convert to fraction form
    143,252.43/214,775.72 = 67,308.15/x
  3. Step 3: Cross multiply
    143,252.43x = 214,775.72 × 67,308.15
  4. Step 4: Simplify right side
    143,252.43x = 14,456,155,472.51
  5. Step 5: Solve for x
    x = 14,456,155,472.51/143,252.43
  6. Step 6: Final answer
    x = 100,913.86

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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.