Home / 179,905.32-269,438.16-142,212.36

Finding the Fourth Proportional to 179,905.32, 269,438.16 and 142,212.36

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Solution

The fourth proportional to 179,905.32, 269,438.16 and 142,212.36 is: 212,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,905.32 : 269,438.16 = 142,212.36 : x
  2. Step 2: Convert to fraction form
    179,905.32/269,438.16 = 142,212.36/x
  3. Step 3: Cross multiply
    179,905.32x = 269,438.16 × 142,212.36
  4. Step 4: Simplify right side
    179,905.32x = 38,317,436,607.66
  5. Step 5: Solve for x
    x = 38,317,436,607.66/179,905.32
  6. Step 6: Final answer
    x = 212,986.68

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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.