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Finding the Fourth Proportional to 118,516.37, 177,754.64 and 39,630.47

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Solution

The fourth proportional to 118,516.37, 177,754.64 and 39,630.47 is: 59,439.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,516.37 : 177,754.64 = 39,630.47 : x
  2. Step 2: Convert to fraction form
    118,516.37/177,754.64 = 39,630.47/x
  3. Step 3: Cross multiply
    118,516.37x = 177,754.64 × 39,630.47
  4. Step 4: Simplify right side
    118,516.37x = 7,044,498,840.96
  5. Step 5: Solve for x
    x = 7,044,498,840.96/118,516.37
  6. Step 6: Final answer
    x = 59,439.04

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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.