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Finding the Fourth Proportional to 168,045.60, 252,068.40 and 43,386.60

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Solution

The fourth proportional to 168,045.60, 252,068.40 and 43,386.60 is: 65,079.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,045.60 : 252,068.40 = 43,386.60 : x
  2. Step 2: Convert to fraction form
    168,045.60/252,068.40 = 43,386.60/x
  3. Step 3: Cross multiply
    168,045.60x = 252,068.40 × 43,386.60
  4. Step 4: Simplify right side
    168,045.60x = 10,936,390,843.44
  5. Step 5: Solve for x
    x = 10,936,390,843.44/168,045.60
  6. Step 6: Final answer
    x = 65,079.90

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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.