Home / 128,066.10-192,097.35-57,945.30

Finding the Fourth Proportional to 128,066.10, 192,097.35 and 57,945.30

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Solution

The fourth proportional to 128,066.10, 192,097.35 and 57,945.30 is: 86,917.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,066.10 : 192,097.35 = 57,945.30 : x
  2. Step 2: Convert to fraction form
    128,066.10/192,097.35 = 57,945.30/x
  3. Step 3: Cross multiply
    128,066.10x = 192,097.35 × 57,945.30
  4. Step 4: Simplify right side
    128,066.10x = 11,131,138,574.96
  5. Step 5: Solve for x
    x = 11,131,138,574.96/128,066.10
  6. Step 6: Final answer
    x = 86,917.14

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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.