Home / 132,433.10-198,321.60-84,975.20

Finding the Fourth Proportional to 132,433.10, 198,321.60 and 84,975.20

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Solution

The fourth proportional to 132,433.10, 198,321.60 and 84,975.20 is: 127,252.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,433.10 : 198,321.60 = 84,975.20 : x
  2. Step 2: Convert to fraction form
    132,433.10/198,321.60 = 84,975.20/x
  3. Step 3: Cross multiply
    132,433.10x = 198,321.60 × 84,975.20
  4. Step 4: Simplify right side
    132,433.10x = 16,852,417,624.32
  5. Step 5: Solve for x
    x = 16,852,417,624.32/132,433.10
  6. Step 6: Final answer
    x = 127,252.31

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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.