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Finding the Fourth Proportional to 143,874.60, 215,811.90 and 94,108.20

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Solution

The fourth proportional to 143,874.60, 215,811.90 and 94,108.20 is: 141,162.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,874.60 : 215,811.90 = 94,108.20 : x
  2. Step 2: Convert to fraction form
    143,874.60/215,811.90 = 94,108.20/x
  3. Step 3: Cross multiply
    143,874.60x = 215,811.90 × 94,108.20
  4. Step 4: Simplify right side
    143,874.60x = 20,309,669,447.58
  5. Step 5: Solve for x
    x = 20,309,669,447.58/143,874.60
  6. Step 6: Final answer
    x = 141,162.30

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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.