Home / 117,590.19-162,173.91-79,343.20

Finding the Fourth Proportional to 117,590.19, 162,173.91 and 79,343.20

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Solution

The fourth proportional to 117,590.19, 162,173.91 and 79,343.20 is: 109,425.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,590.19 : 162,173.91 = 79,343.20 : x
  2. Step 2: Convert to fraction form
    117,590.19/162,173.91 = 79,343.20/x
  3. Step 3: Cross multiply
    117,590.19x = 162,173.91 × 79,343.20
  4. Step 4: Simplify right side
    117,590.19x = 12,867,396,975.91
  5. Step 5: Solve for x
    x = 12,867,396,975.91/117,590.19
  6. Step 6: Final answer
    x = 109,425.77

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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.