Home / 119,844.14-165,384.72-66,129.12

Finding the Fourth Proportional to 119,844.14, 165,384.72 and 66,129.12

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Solution

The fourth proportional to 119,844.14, 165,384.72 and 66,129.12 is: 91,258.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,844.14 : 165,384.72 = 66,129.12 : x
  2. Step 2: Convert to fraction form
    119,844.14/165,384.72 = 66,129.12/x
  3. Step 3: Cross multiply
    119,844.14x = 165,384.72 × 66,129.12
  4. Step 4: Simplify right side
    119,844.14x = 10,936,745,995.05
  5. Step 5: Solve for x
    x = 10,936,745,995.05/119,844.14
  6. Step 6: Final answer
    x = 91,258.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.