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Finding the Fourth Proportional to 118,704.54, 178,098.93 and 39,818.64

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Solution

The fourth proportional to 118,704.54, 178,098.93 and 39,818.64 is: 59,742.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,704.54 : 178,098.93 = 39,818.64 : x
  2. Step 2: Convert to fraction form
    118,704.54/178,098.93 = 39,818.64/x
  3. Step 3: Cross multiply
    118,704.54x = 178,098.93 × 39,818.64
  4. Step 4: Simplify right side
    118,704.54x = 7,091,657,178.06
  5. Step 5: Solve for x
    x = 7,091,657,178.06/118,704.54
  6. Step 6: Final answer
    x = 59,742.09

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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.