Home / 154,054.20-231,318.90-84,070.20

Finding the Fourth Proportional to 154,054.20, 231,318.90 and 84,070.20

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Solution

The fourth proportional to 154,054.20, 231,318.90 and 84,070.20 is: 126,234.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,054.20 : 231,318.90 = 84,070.20 : x
  2. Step 2: Convert to fraction form
    154,054.20/231,318.90 = 84,070.20/x
  3. Step 3: Cross multiply
    154,054.20x = 231,318.90 × 84,070.20
  4. Step 4: Simplify right side
    154,054.20x = 19,447,026,186.78
  5. Step 5: Solve for x
    x = 19,447,026,186.78/154,054.20
  6. Step 6: Final answer
    x = 126,234.96

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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.