Home / 99,684.56-149,785.32-74,957.60

Finding the Fourth Proportional to 99,684.56, 149,785.32 and 74,957.60

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Solution

The fourth proportional to 99,684.56, 149,785.32 and 74,957.60 is: 112,630.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,684.56 : 149,785.32 = 74,957.60 : x
  2. Step 2: Convert to fraction form
    99,684.56/149,785.32 = 74,957.60/x
  3. Step 3: Cross multiply
    99,684.56x = 149,785.32 × 74,957.60
  4. Step 4: Simplify right side
    99,684.56x = 11,227,548,102.43
  5. Step 5: Solve for x
    x = 11,227,548,102.43/99,684.56
  6. Step 6: Final answer
    x = 112,630.76

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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.