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Finding the Fourth Proportional to 186,502.86, 279,782.07 and 66,550.45

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Solution

The fourth proportional to 186,502.86, 279,782.07 and 66,550.45 is: 99,835.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,502.86 : 279,782.07 = 66,550.45 : x
  2. Step 2: Convert to fraction form
    186,502.86/279,782.07 = 66,550.45/x
  3. Step 3: Cross multiply
    186,502.86x = 279,782.07 × 66,550.45
  4. Step 4: Simplify right side
    186,502.86x = 18,619,622,660.43
  5. Step 5: Solve for x
    x = 18,619,622,660.43/186,502.86
  6. Step 6: Final answer
    x = 99,835.59

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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.