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Finding the Fourth Proportional to 118,666.60, 177,999.18 and 47,621.32

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Solution

The fourth proportional to 118,666.60, 177,999.18 and 47,621.32 is: 71,431.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,666.60 : 177,999.18 = 47,621.32 : x
  2. Step 2: Convert to fraction form
    118,666.60/177,999.18 = 47,621.32/x
  3. Step 3: Cross multiply
    118,666.60x = 177,999.18 × 47,621.32
  4. Step 4: Simplify right side
    118,666.60x = 8,476,555,910.52
  5. Step 5: Solve for x
    x = 8,476,555,910.52/118,666.60
  6. Step 6: Final answer
    x = 71,431.69

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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.