Home / 162,506.39-243,559.94-91,279.30

Finding the Fourth Proportional to 162,506.39, 243,559.94 and 91,279.30

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Solution

The fourth proportional to 162,506.39, 243,559.94 and 91,279.30 is: 136,806.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,506.39 : 243,559.94 = 91,279.30 : x
  2. Step 2: Convert to fraction form
    162,506.39/243,559.94 = 91,279.30/x
  3. Step 3: Cross multiply
    162,506.39x = 243,559.94 × 91,279.30
  4. Step 4: Simplify right side
    162,506.39x = 22,231,980,450.54
  5. Step 5: Solve for x
    x = 22,231,980,450.54/162,506.39
  6. Step 6: Final answer
    x = 136,806.81

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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.