Home / 186,504.12-279,697.86-81,217.08

Finding the Fourth Proportional to 186,504.12, 279,697.86 and 81,217.08

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Solution

The fourth proportional to 186,504.12, 279,697.86 and 81,217.08 is: 121,800.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,504.12 : 279,697.86 = 81,217.08 : x
  2. Step 2: Convert to fraction form
    186,504.12/279,697.86 = 81,217.08/x
  3. Step 3: Cross multiply
    186,504.12x = 279,697.86 × 81,217.08
  4. Step 4: Simplify right side
    186,504.12x = 22,716,243,471.45
  5. Step 5: Solve for x
    x = 22,716,243,471.45/186,504.12
  6. Step 6: Final answer
    x = 121,800.22

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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.