Home / 114,819.90-158,528.78-102,682.72

Finding the Fourth Proportional to 114,819.90, 158,528.78 and 102,682.72

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Solution

The fourth proportional to 114,819.90, 158,528.78 and 102,682.72 is: 141,771.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,819.90 : 158,528.78 = 102,682.72 : x
  2. Step 2: Convert to fraction form
    114,819.90/158,528.78 = 102,682.72/x
  3. Step 3: Cross multiply
    114,819.90x = 158,528.78 × 102,682.72
  4. Step 4: Simplify right side
    114,819.90x = 16,278,166,328.68
  5. Step 5: Solve for x
    x = 16,278,166,328.68/114,819.90
  6. Step 6: Final answer
    x = 141,771.30

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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.