Home / 240,420.06-331,797.68-137,056.72

Finding the Fourth Proportional to 240,420.06, 331,797.68 and 137,056.72

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Solution

The fourth proportional to 240,420.06, 331,797.68 and 137,056.72 is: 189,148.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,420.06 : 331,797.68 = 137,056.72 : x
  2. Step 2: Convert to fraction form
    240,420.06/331,797.68 = 137,056.72/x
  3. Step 3: Cross multiply
    240,420.06x = 331,797.68 × 137,056.72
  4. Step 4: Simplify right side
    240,420.06x = 45,475,099,380.14
  5. Step 5: Solve for x
    x = 45,475,099,380.14/240,420.06
  6. Step 6: Final answer
    x = 189,148.53

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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.