Home / 154,229.74-212,835.58-86,245.94

Finding the Fourth Proportional to 154,229.74, 212,835.58 and 86,245.94

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Solution

The fourth proportional to 154,229.74, 212,835.58 and 86,245.94 is: 119,018.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,229.74 : 212,835.58 = 86,245.94 : x
  2. Step 2: Convert to fraction form
    154,229.74/212,835.58 = 86,245.94/x
  3. Step 3: Cross multiply
    154,229.74x = 212,835.58 × 86,245.94
  4. Step 4: Simplify right side
    154,229.74x = 18,356,204,662.55
  5. Step 5: Solve for x
    x = 18,356,204,662.55/154,229.74
  6. Step 6: Final answer
    x = 119,018.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.