Home / 128,022.39-191,938.46-61,399.08

Finding the Fourth Proportional to 128,022.39, 191,938.46 and 61,399.08

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Solution

The fourth proportional to 128,022.39, 191,938.46 and 61,399.08 is: 92,053.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,022.39 : 191,938.46 = 61,399.08 : x
  2. Step 2: Convert to fraction form
    128,022.39/191,938.46 = 61,399.08/x
  3. Step 3: Cross multiply
    128,022.39x = 191,938.46 × 61,399.08
  4. Step 4: Simplify right side
    128,022.39x = 11,784,844,553.62
  5. Step 5: Solve for x
    x = 11,784,844,553.62/128,022.39
  6. Step 6: Final answer
    x = 92,053.00

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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.