Home / 132,182.80-198,232.32-43,415.68

Finding the Fourth Proportional to 132,182.80, 198,232.32 and 43,415.68

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Solution

The fourth proportional to 132,182.80, 198,232.32 and 43,415.68 is: 65,109.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,182.80 : 198,232.32 = 43,415.68 : x
  2. Step 2: Convert to fraction form
    132,182.80/198,232.32 = 43,415.68/x
  3. Step 3: Cross multiply
    132,182.80x = 198,232.32 × 43,415.68
  4. Step 4: Simplify right side
    132,182.80x = 8,606,390,970.78
  5. Step 5: Solve for x
    x = 8,606,390,970.78/132,182.80
  6. Step 6: Final answer
    x = 65,109.76

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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.