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Finding the Fourth Proportional to 102,761.62, 153,754.84 and 60,664.60

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Solution

The fourth proportional to 102,761.62, 153,754.84 and 60,664.60 is: 90,768.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,761.62 : 153,754.84 = 60,664.60 : x
  2. Step 2: Convert to fraction form
    102,761.62/153,754.84 = 60,664.60/x
  3. Step 3: Cross multiply
    102,761.62x = 153,754.84 × 60,664.60
  4. Step 4: Simplify right side
    102,761.62x = 9,327,475,866.66
  5. Step 5: Solve for x
    x = 9,327,475,866.66/102,761.62
  6. Step 6: Final answer
    x = 90,768.09

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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.