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Finding the Fourth Proportional to 125,778.84, 173,455.68 and 80,471.16

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Solution

The fourth proportional to 125,778.84, 173,455.68 and 80,471.16 is: 110,973.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,778.84 : 173,455.68 = 80,471.16 : x
  2. Step 2: Convert to fraction form
    125,778.84/173,455.68 = 80,471.16/x
  3. Step 3: Cross multiply
    125,778.84x = 173,455.68 × 80,471.16
  4. Step 4: Simplify right side
    125,778.84x = 13,958,179,778.19
  5. Step 5: Solve for x
    x = 13,958,179,778.19/125,778.84
  6. Step 6: Final answer
    x = 110,973.99

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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.