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Finding the Fourth Proportional to 118,818.01, 178,213.14 and 47,737.78

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Solution

The fourth proportional to 118,818.01, 178,213.14 and 47,737.78 is: 71,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,818.01 : 178,213.14 = 47,737.78 : x
  2. Step 2: Convert to fraction form
    118,818.01/178,213.14 = 47,737.78/x
  3. Step 3: Cross multiply
    118,818.01x = 178,213.14 × 47,737.78
  4. Step 4: Simplify right side
    118,818.01x = 8,507,499,670.43
  5. Step 5: Solve for x
    x = 8,507,499,670.43/118,818.01
  6. Step 6: Final answer
    x = 71,601.10

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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.