Home / 186,131.39-279,100.49-91,320.08

Finding the Fourth Proportional to 186,131.39, 279,100.49 and 91,320.08

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Solution

The fourth proportional to 186,131.39, 279,100.49 and 91,320.08 is: 136,932.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,131.39 : 279,100.49 = 91,320.08 : x
  2. Step 2: Convert to fraction form
    186,131.39/279,100.49 = 91,320.08/x
  3. Step 3: Cross multiply
    186,131.39x = 279,100.49 × 91,320.08
  4. Step 4: Simplify right side
    186,131.39x = 25,487,477,222.74
  5. Step 5: Solve for x
    x = 25,487,477,222.74/186,131.39
  6. Step 6: Final answer
    x = 136,932.72

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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.