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Finding the Fourth Proportional to 101,654.98, 140,272.48 and 56,321.64

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Solution

The fourth proportional to 101,654.98, 140,272.48 and 56,321.64 is: 77,717.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,654.98 : 140,272.48 = 56,321.64 : x
  2. Step 2: Convert to fraction form
    101,654.98/140,272.48 = 56,321.64/x
  3. Step 3: Cross multiply
    101,654.98x = 140,272.48 × 56,321.64
  4. Step 4: Simplify right side
    101,654.98x = 7,900,376,120.47
  5. Step 5: Solve for x
    x = 7,900,376,120.47/101,654.98
  6. Step 6: Final answer
    x = 77,717.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.