Home / 154,776.20-231,818.70-119,438.60

Finding the Fourth Proportional to 154,776.20, 231,818.70 and 119,438.60

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Solution

The fourth proportional to 154,776.20, 231,818.70 and 119,438.60 is: 178,891.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,776.20 : 231,818.70 = 119,438.60 : x
  2. Step 2: Convert to fraction form
    154,776.20/231,818.70 = 119,438.60/x
  3. Step 3: Cross multiply
    154,776.20x = 231,818.70 × 119,438.60
  4. Step 4: Simplify right side
    154,776.20x = 27,688,100,981.82
  5. Step 5: Solve for x
    x = 27,688,100,981.82/154,776.20
  6. Step 6: Final answer
    x = 178,891.21

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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.