Home / 154,264.64-231,338.56-84,105.76

Finding the Fourth Proportional to 154,264.64, 231,338.56 and 84,105.76

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Solution

The fourth proportional to 154,264.64, 231,338.56 and 84,105.76 is: 126,126.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,264.64 : 231,338.56 = 84,105.76 : x
  2. Step 2: Convert to fraction form
    154,264.64/231,338.56 = 84,105.76/x
  3. Step 3: Cross multiply
    154,264.64x = 231,338.56 × 84,105.76
  4. Step 4: Simplify right side
    154,264.64x = 19,456,905,406.11
  5. Step 5: Solve for x
    x = 19,456,905,406.11/154,264.64
  6. Step 6: Final answer
    x = 126,126.80

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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.