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Finding the Fourth Proportional to 118,340.86, 177,512.86 and 39,455.12

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Solution

The fourth proportional to 118,340.86, 177,512.86 and 39,455.12 is: 59,183.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,340.86 : 177,512.86 = 39,455.12 : x
  2. Step 2: Convert to fraction form
    118,340.86/177,512.86 = 39,455.12/x
  3. Step 3: Cross multiply
    118,340.86x = 177,512.86 × 39,455.12
  4. Step 4: Simplify right side
    118,340.86x = 7,003,791,192.84
  5. Step 5: Solve for x
    x = 7,003,791,192.84/118,340.86
  6. Step 6: Final answer
    x = 59,183.20

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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.