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Finding the Fourth Proportional to 101,311.56, 152,011.08 and 54,555.12

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Solution

The fourth proportional to 101,311.56, 152,011.08 and 54,555.12 is: 81,856.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,311.56 : 152,011.08 = 54,555.12 : x
  2. Step 2: Convert to fraction form
    101,311.56/152,011.08 = 54,555.12/x
  3. Step 3: Cross multiply
    101,311.56x = 152,011.08 × 54,555.12
  4. Step 4: Simplify right side
    101,311.56x = 8,292,982,710.73
  5. Step 5: Solve for x
    x = 8,292,982,710.73/101,311.56
  6. Step 6: Final answer
    x = 81,856.23

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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.