Home / 186,089.39-279,134.09-80,908.36

Finding the Fourth Proportional to 186,089.39, 279,134.09 and 80,908.36

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Solution

The fourth proportional to 186,089.39, 279,134.09 and 80,908.36 is: 121,362.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,089.39 : 279,134.09 = 80,908.36 : x
  2. Step 2: Convert to fraction form
    186,089.39/279,134.09 = 80,908.36/x
  3. Step 3: Cross multiply
    186,089.39x = 279,134.09 × 80,908.36
  4. Step 4: Simplify right side
    186,089.39x = 22,584,280,339.62
  5. Step 5: Solve for x
    x = 22,584,280,339.62/186,089.39
  6. Step 6: Final answer
    x = 121,362.53

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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.