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Finding the Fourth Proportional to 118,820.14, 178,230.21 and 39,934.37

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Solution

The fourth proportional to 118,820.14, 178,230.21 and 39,934.37 is: 59,901.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,820.14 : 178,230.21 = 39,934.37 : x
  2. Step 2: Convert to fraction form
    118,820.14/178,230.21 = 39,934.37/x
  3. Step 3: Cross multiply
    118,820.14x = 178,230.21 × 39,934.37
  4. Step 4: Simplify right side
    118,820.14x = 7,117,511,151.32
  5. Step 5: Solve for x
    x = 7,117,511,151.32/118,820.14
  6. Step 6: Final answer
    x = 59,901.56

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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.