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Finding the Fourth Proportional to 118,685.34, 177,970.59 and 43,840.73

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Solution

The fourth proportional to 118,685.34, 177,970.59 and 43,840.73 is: 65,739.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,685.34 : 177,970.59 = 43,840.73 : x
  2. Step 2: Convert to fraction form
    118,685.34/177,970.59 = 43,840.73/x
  3. Step 3: Cross multiply
    118,685.34x = 177,970.59 × 43,840.73
  4. Step 4: Simplify right side
    118,685.34x = 7,802,359,694.28
  5. Step 5: Solve for x
    x = 7,802,359,694.28/118,685.34
  6. Step 6: Final answer
    x = 65,739.88

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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.