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Finding the Fourth Proportional to 143,168.60, 214,733.29 and 79,244.98

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Solution

The fourth proportional to 143,168.60, 214,733.29 and 79,244.98 is: 118,856.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,168.60 : 214,733.29 = 79,244.98 : x
  2. Step 2: Convert to fraction form
    143,168.60/214,733.29 = 79,244.98/x
  3. Step 3: Cross multiply
    143,168.60x = 214,733.29 × 79,244.98
  4. Step 4: Simplify right side
    143,168.60x = 17,016,535,271.38
  5. Step 5: Solve for x
    x = 17,016,535,271.38/143,168.60
  6. Step 6: Final answer
    x = 118,856.62

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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.