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Finding the Fourth Proportional to 118,900.60, 178,437.30 and 48,830.20

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Solution

The fourth proportional to 118,900.60, 178,437.30 and 48,830.20 is: 73,280.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,900.60 : 178,437.30 = 48,830.20 : x
  2. Step 2: Convert to fraction form
    118,900.60/178,437.30 = 48,830.20/x
  3. Step 3: Cross multiply
    118,900.60x = 178,437.30 × 48,830.20
  4. Step 4: Simplify right side
    118,900.60x = 8,713,129,046.46
  5. Step 5: Solve for x
    x = 8,713,129,046.46/118,900.60
  6. Step 6: Final answer
    x = 73,280.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.