Home / 91,152.38-136,531.73-88,921.64

Finding the Fourth Proportional to 91,152.38, 136,531.73 and 88,921.64

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Solution

The fourth proportional to 91,152.38, 136,531.73 and 88,921.64 is: 133,190.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,152.38 : 136,531.73 = 88,921.64 : x
  2. Step 2: Convert to fraction form
    91,152.38/136,531.73 = 88,921.64/x
  3. Step 3: Cross multiply
    91,152.38x = 136,531.73 × 88,921.64
  4. Step 4: Simplify right side
    91,152.38x = 12,140,624,216.37
  5. Step 5: Solve for x
    x = 12,140,624,216.37/91,152.38
  6. Step 6: Final answer
    x = 133,190.43

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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.