Home / 101,947.32-140,688.94-57,234.36

Finding the Fourth Proportional to 101,947.32, 140,688.94 and 57,234.36

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Solution

The fourth proportional to 101,947.32, 140,688.94 and 57,234.36 is: 78,984.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,947.32 : 140,688.94 = 57,234.36 : x
  2. Step 2: Convert to fraction form
    101,947.32/140,688.94 = 57,234.36/x
  3. Step 3: Cross multiply
    101,947.32x = 140,688.94 × 57,234.36
  4. Step 4: Simplify right side
    101,947.32x = 8,052,241,439.98
  5. Step 5: Solve for x
    x = 8,052,241,439.98/101,947.32
  6. Step 6: Final answer
    x = 78,984.34

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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.