Home / 143,692.82-198,302.18-80,030.60

Finding the Fourth Proportional to 143,692.82, 198,302.18 and 80,030.60

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Solution

The fourth proportional to 143,692.82, 198,302.18 and 80,030.60 is: 110,445.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,692.82 : 198,302.18 = 80,030.60 : x
  2. Step 2: Convert to fraction form
    143,692.82/198,302.18 = 80,030.60/x
  3. Step 3: Cross multiply
    143,692.82x = 198,302.18 × 80,030.60
  4. Step 4: Simplify right side
    143,692.82x = 15,870,242,446.71
  5. Step 5: Solve for x
    x = 15,870,242,446.71/143,692.82
  6. Step 6: Final answer
    x = 110,445.62

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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.