Home / 105,939.88-158,858.46-61,579.40

Finding the Fourth Proportional to 105,939.88, 158,858.46 and 61,579.40

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Solution

The fourth proportional to 105,939.88, 158,858.46 and 61,579.40 is: 92,339.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,939.88 : 158,858.46 = 61,579.40 : x
  2. Step 2: Convert to fraction form
    105,939.88/158,858.46 = 61,579.40/x
  3. Step 3: Cross multiply
    105,939.88x = 158,858.46 × 61,579.40
  4. Step 4: Simplify right side
    105,939.88x = 9,782,408,651.72
  5. Step 5: Solve for x
    x = 9,782,408,651.72/105,939.88
  6. Step 6: Final answer
    x = 92,339.25

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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.