Home / 154,205.80-231,345.66-53,002.12

Finding the Fourth Proportional to 154,205.80, 231,345.66 and 53,002.12

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Solution

The fourth proportional to 154,205.80, 231,345.66 and 53,002.12 is: 79,515.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,205.80 : 231,345.66 = 53,002.12 : x
  2. Step 2: Convert to fraction form
    154,205.80/231,345.66 = 53,002.12/x
  3. Step 3: Cross multiply
    154,205.80x = 231,345.66 × 53,002.12
  4. Step 4: Simplify right side
    154,205.80x = 12,261,810,432.80
  5. Step 5: Solve for x
    x = 12,261,810,432.80/154,205.80
  6. Step 6: Final answer
    x = 79,515.88

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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.