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Finding the Fourth Proportional to 143,958.16, 215,937.60 and 73,799.20

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Solution

The fourth proportional to 143,958.16, 215,937.60 and 73,799.20 is: 110,698.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,958.16 : 215,937.60 = 73,799.20 : x
  2. Step 2: Convert to fraction form
    143,958.16/215,937.60 = 73,799.20/x
  3. Step 3: Cross multiply
    143,958.16x = 215,937.60 × 73,799.20
  4. Step 4: Simplify right side
    143,958.16x = 15,936,022,129.92
  5. Step 5: Solve for x
    x = 15,936,022,129.92/143,958.16
  6. Step 6: Final answer
    x = 110,698.98

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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.