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Finding the Fourth Proportional to 135,986.60, 203,807.10 and 65,714.60

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Solution

The fourth proportional to 135,986.60, 203,807.10 and 65,714.60 is: 98,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,986.60 : 203,807.10 = 65,714.60 : x
  2. Step 2: Convert to fraction form
    135,986.60/203,807.10 = 65,714.60/x
  3. Step 3: Cross multiply
    135,986.60x = 203,807.10 × 65,714.60
  4. Step 4: Simplify right side
    135,986.60x = 13,393,102,053.66
  5. Step 5: Solve for x
    x = 13,393,102,053.66/135,986.60
  6. Step 6: Final answer
    x = 98,488.40

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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.