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Finding the Fourth Proportional to 103,956.83, 143,452.17 and 58,620.32

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Solution

The fourth proportional to 103,956.83, 143,452.17 and 58,620.32 is: 80,891.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,956.83 : 143,452.17 = 58,620.32 : x
  2. Step 2: Convert to fraction form
    103,956.83/143,452.17 = 58,620.32/x
  3. Step 3: Cross multiply
    103,956.83x = 143,452.17 × 58,620.32
  4. Step 4: Simplify right side
    103,956.83x = 8,409,212,110.09
  5. Step 5: Solve for x
    x = 8,409,212,110.09/103,956.83
  6. Step 6: Final answer
    x = 80,891.39

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1.5x scale

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.