Home / 154,253.24-231,115.80-84,181.76

Finding the Fourth Proportional to 154,253.24, 231,115.80 and 84,181.76

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Solution

The fourth proportional to 154,253.24, 231,115.80 and 84,181.76 is: 126,128.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,253.24 : 231,115.80 = 84,181.76 : x
  2. Step 2: Convert to fraction form
    154,253.24/231,115.80 = 84,181.76/x
  3. Step 3: Cross multiply
    154,253.24x = 231,115.80 × 84,181.76
  4. Step 4: Simplify right side
    154,253.24x = 19,455,734,807.81
  5. Step 5: Solve for x
    x = 19,455,734,807.81/154,253.24
  6. Step 6: Final answer
    x = 126,128.53

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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.