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Finding the Fourth Proportional to 143,350.59, 215,069.64 and 73,279.11

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Solution

The fourth proportional to 143,350.59, 215,069.64 and 73,279.11 is: 109,941.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,350.59 : 215,069.64 = 73,279.11 : x
  2. Step 2: Convert to fraction form
    143,350.59/215,069.64 = 73,279.11/x
  3. Step 3: Cross multiply
    143,350.59x = 215,069.64 × 73,279.11
  4. Step 4: Simplify right side
    143,350.59x = 15,760,111,807.22
  5. Step 5: Solve for x
    x = 15,760,111,807.22/143,350.59
  6. Step 6: Final answer
    x = 109,941.03

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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.