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Finding the Fourth Proportional to 118,572.54, 177,908.73 and 51,978.30

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Solution

The fourth proportional to 118,572.54, 177,908.73 and 51,978.30 is: 77,989.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,572.54 : 177,908.73 = 51,978.30 : x
  2. Step 2: Convert to fraction form
    118,572.54/177,908.73 = 51,978.30/x
  3. Step 3: Cross multiply
    118,572.54x = 177,908.73 × 51,978.30
  4. Step 4: Simplify right side
    118,572.54x = 9,247,393,340.56
  5. Step 5: Solve for x
    x = 9,247,393,340.56/118,572.54
  6. Step 6: Final answer
    x = 77,989.33

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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.