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Finding the Fourth Proportional to 104,259.62, 143,865.41 and 74,033.93

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Solution

The fourth proportional to 104,259.62, 143,865.41 and 74,033.93 is: 102,157.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,259.62 : 143,865.41 = 74,033.93 : x
  2. Step 2: Convert to fraction form
    104,259.62/143,865.41 = 74,033.93/x
  3. Step 3: Cross multiply
    104,259.62x = 143,865.41 × 74,033.93
  4. Step 4: Simplify right side
    104,259.62x = 10,650,921,682.86
  5. Step 5: Solve for x
    x = 10,650,921,682.86/104,259.62
  6. Step 6: Final answer
    x = 102,157.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.