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Finding the Fourth Proportional to 101,219.20, 151,846.40 and 42,022.40

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Solution

The fourth proportional to 101,219.20, 151,846.40 and 42,022.40 is: 63,040.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,219.20 : 151,846.40 = 42,022.40 : x
  2. Step 2: Convert to fraction form
    101,219.20/151,846.40 = 42,022.40/x
  3. Step 3: Cross multiply
    101,219.20x = 151,846.40 × 42,022.40
  4. Step 4: Simplify right side
    101,219.20x = 6,380,950,159.36
  5. Step 5: Solve for x
    x = 6,380,950,159.36/101,219.20
  6. Step 6: Final answer
    x = 63,040.91

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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.