Home / 128,330.82-192,528.96-53,426.04

Finding the Fourth Proportional to 128,330.82, 192,528.96 and 53,426.04

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Solution

The fourth proportional to 128,330.82, 192,528.96 and 53,426.04 is: 80,152.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,330.82 : 192,528.96 = 53,426.04 : x
  2. Step 2: Convert to fraction form
    128,330.82/192,528.96 = 53,426.04/x
  3. Step 3: Cross multiply
    128,330.82x = 192,528.96 × 53,426.04
  4. Step 4: Simplify right side
    128,330.82x = 10,286,059,918.12
  5. Step 5: Solve for x
    x = 10,286,059,918.12/128,330.82
  6. Step 6: Final answer
    x = 80,152.69

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1.5x scale

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.