Home / 154,115.16-231,239.52-54,346.62

Finding the Fourth Proportional to 154,115.16, 231,239.52 and 54,346.62

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Solution

The fourth proportional to 154,115.16, 231,239.52 and 54,346.62 is: 81,543.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,115.16 : 231,239.52 = 54,346.62 : x
  2. Step 2: Convert to fraction form
    154,115.16/231,239.52 = 54,346.62/x
  3. Step 3: Cross multiply
    154,115.16x = 231,239.52 × 54,346.62
  4. Step 4: Simplify right side
    154,115.16x = 12,567,086,322.42
  5. Step 5: Solve for x
    x = 12,567,086,322.42/154,115.16
  6. Step 6: Final answer
    x = 81,543.48

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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.