Home / 154,426.20-231,639.30-147,209.10

Finding the Fourth Proportional to 154,426.20, 231,639.30 and 147,209.10

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Solution

The fourth proportional to 154,426.20, 231,639.30 and 147,209.10 is: 220,813.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,426.20 : 231,639.30 = 147,209.10 : x
  2. Step 2: Convert to fraction form
    154,426.20/231,639.30 = 147,209.10/x
  3. Step 3: Cross multiply
    154,426.20x = 231,639.30 × 147,209.10
  4. Step 4: Simplify right side
    154,426.20x = 34,099,412,877.63
  5. Step 5: Solve for x
    x = 34,099,412,877.63/154,426.20
  6. Step 6: Final answer
    x = 220,813.65

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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.