Home / 154,135.98-231,208.07-54,273.46

Finding the Fourth Proportional to 154,135.98, 231,208.07 and 54,273.46

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Solution

The fourth proportional to 154,135.98, 231,208.07 and 54,273.46 is: 81,411.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,135.98 : 231,208.07 = 54,273.46 : x
  2. Step 2: Convert to fraction form
    154,135.98/231,208.07 = 54,273.46/x
  3. Step 3: Cross multiply
    154,135.98x = 231,208.07 × 54,273.46
  4. Step 4: Simplify right side
    154,135.98x = 12,548,461,828.24
  5. Step 5: Solve for x
    x = 12,548,461,828.24/154,135.98
  6. Step 6: Final answer
    x = 81,411.63

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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.