Home / 128,333.94-192,533.71-53,429.19

Finding the Fourth Proportional to 128,333.94, 192,533.71 and 53,429.19

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Solution

The fourth proportional to 128,333.94, 192,533.71 and 53,429.19 is: 80,157.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,333.94 : 192,533.71 = 53,429.19 : x
  2. Step 2: Convert to fraction form
    128,333.94/192,533.71 = 53,429.19/x
  3. Step 3: Cross multiply
    128,333.94x = 192,533.71 × 53,429.19
  4. Step 4: Simplify right side
    128,333.94x = 10,286,919,417.60
  5. Step 5: Solve for x
    x = 10,286,919,417.60/128,333.94
  6. Step 6: Final answer
    x = 80,157.44

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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.