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Finding the Fourth Proportional to 101,391.37, 152,040.92 and 53,994.30

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Solution

The fourth proportional to 101,391.37, 152,040.92 and 53,994.30 is: 80,966.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,391.37 : 152,040.92 = 53,994.30 : x
  2. Step 2: Convert to fraction form
    101,391.37/152,040.92 = 53,994.30/x
  3. Step 3: Cross multiply
    101,391.37x = 152,040.92 × 53,994.30
  4. Step 4: Simplify right side
    101,391.37x = 8,209,342,662.21
  5. Step 5: Solve for x
    x = 8,209,342,662.21/101,391.37
  6. Step 6: Final answer
    x = 80,966.88

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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.