Home / 138,214.96-207,424.92-102,758.32

Finding the Fourth Proportional to 138,214.96, 207,424.92 and 102,758.32

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Solution

The fourth proportional to 138,214.96, 207,424.92 and 102,758.32 is: 154,213.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,214.96 : 207,424.92 = 102,758.32 : x
  2. Step 2: Convert to fraction form
    138,214.96/207,424.92 = 102,758.32/x
  3. Step 3: Cross multiply
    138,214.96x = 207,424.92 × 102,758.32
  4. Step 4: Simplify right side
    138,214.96x = 21,314,636,305.33
  5. Step 5: Solve for x
    x = 21,314,636,305.33/138,214.96
  6. Step 6: Final answer
    x = 154,213.67

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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.