Home / 142,363.50-196,444.57-78,692.64

Finding the Fourth Proportional to 142,363.50, 196,444.57 and 78,692.64

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Solution

The fourth proportional to 142,363.50, 196,444.57 and 78,692.64 is: 108,586.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,363.50 : 196,444.57 = 78,692.64 : x
  2. Step 2: Convert to fraction form
    142,363.50/196,444.57 = 78,692.64/x
  3. Step 3: Cross multiply
    142,363.50x = 196,444.57 × 78,692.64
  4. Step 4: Simplify right side
    142,363.50x = 15,458,741,826.96
  5. Step 5: Solve for x
    x = 15,458,741,826.96/142,363.50
  6. Step 6: Final answer
    x = 108,586.41

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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.