Home / 208,819.14-288,170.64-113,325.90

Finding the Fourth Proportional to 208,819.14, 288,170.64 and 113,325.90

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Solution

The fourth proportional to 208,819.14, 288,170.64 and 113,325.90 is: 156,389.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,819.14 : 288,170.64 = 113,325.90 : x
  2. Step 2: Convert to fraction form
    208,819.14/288,170.64 = 113,325.90/x
  3. Step 3: Cross multiply
    208,819.14x = 288,170.64 × 113,325.90
  4. Step 4: Simplify right side
    208,819.14x = 32,657,197,131.58
  5. Step 5: Solve for x
    x = 32,657,197,131.58/208,819.14
  6. Step 6: Final answer
    x = 156,389.87

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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.