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Finding the Fourth Proportional to 127,667.66, 191,494.60 and 38,914.28

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Solution

The fourth proportional to 127,667.66, 191,494.60 and 38,914.28 is: 58,369.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,667.66 : 191,494.60 = 38,914.28 : x
  2. Step 2: Convert to fraction form
    127,667.66/191,494.60 = 38,914.28/x
  3. Step 3: Cross multiply
    127,667.66x = 191,494.60 × 38,914.28
  4. Step 4: Simplify right side
    127,667.66x = 7,451,874,482.89
  5. Step 5: Solve for x
    x = 7,451,874,482.89/127,667.66
  6. Step 6: Final answer
    x = 58,369.32

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Why These Related Problems?

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