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Finding the Fourth Proportional to 118,946.20, 178,419.38 and 35,840.20

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Solution

The fourth proportional to 118,946.20, 178,419.38 and 35,840.20 is: 53,760.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,946.20 : 178,419.38 = 35,840.20 : x
  2. Step 2: Convert to fraction form
    118,946.20/178,419.38 = 35,840.20/x
  3. Step 3: Cross multiply
    118,946.20x = 178,419.38 × 35,840.20
  4. Step 4: Simplify right side
    118,946.20x = 6,394,586,263.08
  5. Step 5: Solve for x
    x = 6,394,586,263.08/118,946.20
  6. Step 6: Final answer
    x = 53,760.32

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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.