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Finding the Fourth Proportional to 76,166.90, 114,250.35 and 20,003.30

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Solution

The fourth proportional to 76,166.90, 114,250.35 and 20,003.30 is: 30,004.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,166.90 : 114,250.35 = 20,003.30 : x
  2. Step 2: Convert to fraction form
    76,166.90/114,250.35 = 20,003.30/x
  3. Step 3: Cross multiply
    76,166.90x = 114,250.35 × 20,003.30
  4. Step 4: Simplify right side
    76,166.90x = 2,285,384,026.16
  5. Step 5: Solve for x
    x = 2,285,384,026.16/76,166.90
  6. Step 6: Final answer
    x = 30,004.95

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1.5x scale

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.