Home / 143,132.58-214,366.59-138,150.45

Finding the Fourth Proportional to 143,132.58, 214,366.59 and 138,150.45

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Solution

The fourth proportional to 143,132.58, 214,366.59 and 138,150.45 is: 206,904.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,132.58 : 214,366.59 = 138,150.45 : x
  2. Step 2: Convert to fraction form
    143,132.58/214,366.59 = 138,150.45/x
  3. Step 3: Cross multiply
    143,132.58x = 214,366.59 × 138,150.45
  4. Step 4: Simplify right side
    143,132.58x = 29,614,840,873.47
  5. Step 5: Solve for x
    x = 29,614,840,873.47/143,132.58
  6. Step 6: Final answer
    x = 206,904.96

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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.