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Finding the Fourth Proportional to 91,437.44, 136,942.88 and 88,914.54

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Solution

The fourth proportional to 91,437.44, 136,942.88 and 88,914.54 is: 133,164.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,437.44 : 136,942.88 = 88,914.54 : x
  2. Step 2: Convert to fraction form
    91,437.44/136,942.88 = 88,914.54/x
  3. Step 3: Cross multiply
    91,437.44x = 136,942.88 × 88,914.54
  4. Step 4: Simplify right side
    91,437.44x = 12,176,213,181.48
  5. Step 5: Solve for x
    x = 12,176,213,181.48/91,437.44
  6. Step 6: Final answer
    x = 133,164.41

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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.