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Finding the Fourth Proportional to 118,072.20, 177,108.30 and 64,928.10

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Solution

The fourth proportional to 118,072.20, 177,108.30 and 64,928.10 is: 97,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,072.20 : 177,108.30 = 64,928.10 : x
  2. Step 2: Convert to fraction form
    118,072.20/177,108.30 = 64,928.10/x
  3. Step 3: Cross multiply
    118,072.20x = 177,108.30 × 64,928.10
  4. Step 4: Simplify right side
    118,072.20x = 11,499,305,413.23
  5. Step 5: Solve for x
    x = 11,499,305,413.23/118,072.20
  6. Step 6: Final answer
    x = 97,392.15

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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.