Home / 154,142.92-231,115.86-114,186.40

Finding the Fourth Proportional to 154,142.92, 231,115.86 and 114,186.40

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Solution

The fourth proportional to 154,142.92, 231,115.86 and 114,186.40 is: 171,206.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,142.92 : 231,115.86 = 114,186.40 : x
  2. Step 2: Convert to fraction form
    154,142.92/231,115.86 = 114,186.40/x
  3. Step 3: Cross multiply
    154,142.92x = 231,115.86 × 114,186.40
  4. Step 4: Simplify right side
    154,142.92x = 26,390,288,036.30
  5. Step 5: Solve for x
    x = 26,390,288,036.30/154,142.92
  6. Step 6: Final answer
    x = 171,206.62

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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.