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Finding the Fourth Proportional to 125,667.69, 188,515.28 and 54,541.44

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Solution

The fourth proportional to 125,667.69, 188,515.28 and 54,541.44 is: 81,818.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,667.69 : 188,515.28 = 54,541.44 : x
  2. Step 2: Convert to fraction form
    125,667.69/188,515.28 = 54,541.44/x
  3. Step 3: Cross multiply
    125,667.69x = 188,515.28 × 54,541.44
  4. Step 4: Simplify right side
    125,667.69x = 10,281,894,560.50
  5. Step 5: Solve for x
    x = 10,281,894,560.50/125,667.69
  6. Step 6: Final answer
    x = 81,818.12

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.