Home / 118,617.40-177,932.58-39,724.48

Finding the Fourth Proportional to 118,617.40, 177,932.58 and 39,724.48

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Solution

The fourth proportional to 118,617.40, 177,932.58 and 39,724.48 is: 59,588.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,617.40 : 177,932.58 = 39,724.48 : x
  2. Step 2: Convert to fraction form
    118,617.40/177,932.58 = 39,724.48/x
  3. Step 3: Cross multiply
    118,617.40x = 177,932.58 × 39,724.48
  4. Step 4: Simplify right side
    118,617.40x = 7,068,279,215.56
  5. Step 5: Solve for x
    x = 7,068,279,215.56/118,617.40
  6. Step 6: Final answer
    x = 59,588.89

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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.