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Finding the Fourth Proportional to 143,369.15, 215,097.47 and 73,297.67

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Solution

The fourth proportional to 143,369.15, 215,097.47 and 73,297.67 is: 109,968.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,369.15 : 215,097.47 = 73,297.67 : x
  2. Step 2: Convert to fraction form
    143,369.15/215,097.47 = 73,297.67/x
  3. Step 3: Cross multiply
    143,369.15x = 215,097.47 × 73,297.67
  4. Step 4: Simplify right side
    143,369.15x = 15,766,144,094.88
  5. Step 5: Solve for x
    x = 15,766,144,094.88/143,369.15
  6. Step 6: Final answer
    x = 109,968.87

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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.