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Finding the Fourth Proportional to 131,994.39, 182,155.84 and 74,642.30

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Solution

The fourth proportional to 131,994.39, 182,155.84 and 74,642.30 is: 103,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,994.39 : 182,155.84 = 74,642.30 : x
  2. Step 2: Convert to fraction form
    131,994.39/182,155.84 = 74,642.30/x
  3. Step 3: Cross multiply
    131,994.39x = 182,155.84 × 74,642.30
  4. Step 4: Simplify right side
    131,994.39x = 13,596,530,856.03
  5. Step 5: Solve for x
    x = 13,596,530,856.03/131,994.39
  6. Step 6: Final answer
    x = 103,008.40

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