Home / 132,983.52-198,613.08-120,478.56

Finding the Fourth Proportional to 132,983.52, 198,613.08 and 120,478.56

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Solution

The fourth proportional to 132,983.52, 198,613.08 and 120,478.56 is: 179,936.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,983.52 : 198,613.08 = 120,478.56 : x
  2. Step 2: Convert to fraction form
    132,983.52/198,613.08 = 120,478.56/x
  3. Step 3: Cross multiply
    132,983.52x = 198,613.08 × 120,478.56
  4. Step 4: Simplify right side
    132,983.52x = 23,928,617,875.56
  5. Step 5: Solve for x
    x = 23,928,617,875.56/132,983.52
  6. Step 6: Final answer
    x = 179,936.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.