Home / 154,194.45-231,106.59-79,349.91

Finding the Fourth Proportional to 154,194.45, 231,106.59 and 79,349.91

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Solution

The fourth proportional to 154,194.45, 231,106.59 and 79,349.91 is: 118,929.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,194.45 : 231,106.59 = 79,349.91 : x
  2. Step 2: Convert to fraction form
    154,194.45/231,106.59 = 79,349.91/x
  3. Step 3: Cross multiply
    154,194.45x = 231,106.59 × 79,349.91
  4. Step 4: Simplify right side
    154,194.45x = 18,338,287,116.91
  5. Step 5: Solve for x
    x = 18,338,287,116.91/154,194.45
  6. Step 6: Final answer
    x = 118,929.62

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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.