Home / 135,176.98-186,469.41-78,582.10

Finding the Fourth Proportional to 135,176.98, 186,469.41 and 78,582.10

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Solution

The fourth proportional to 135,176.98, 186,469.41 and 78,582.10 is: 108,399.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,176.98 : 186,469.41 = 78,582.10 : x
  2. Step 2: Convert to fraction form
    135,176.98/186,469.41 = 78,582.10/x
  3. Step 3: Cross multiply
    135,176.98x = 186,469.41 × 78,582.10
  4. Step 4: Simplify right side
    135,176.98x = 14,653,157,823.56
  5. Step 5: Solve for x
    x = 14,653,157,823.56/135,176.98
  6. Step 6: Final answer
    x = 108,399.80

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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.