Home / 154,418.70-231,336.45-79,283.10

Finding the Fourth Proportional to 154,418.70, 231,336.45 and 79,283.10

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Solution

The fourth proportional to 154,418.70, 231,336.45 and 79,283.10 is: 118,774.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,418.70 : 231,336.45 = 79,283.10 : x
  2. Step 2: Convert to fraction form
    154,418.70/231,336.45 = 79,283.10/x
  3. Step 3: Cross multiply
    154,418.70x = 231,336.45 × 79,283.10
  4. Step 4: Simplify right side
    154,418.70x = 18,341,070,899.00
  5. Step 5: Solve for x
    x = 18,341,070,899.00/154,418.70
  6. Step 6: Final answer
    x = 118,774.93

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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.