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Finding the Fourth Proportional to 103,664.48, 143,101.11 and 69,692.67

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Solution

The fourth proportional to 103,664.48, 143,101.11 and 69,692.67 is: 96,205.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,664.48 : 143,101.11 = 69,692.67 : x
  2. Step 2: Convert to fraction form
    103,664.48/143,101.11 = 69,692.67/x
  3. Step 3: Cross multiply
    103,664.48x = 143,101.11 × 69,692.67
  4. Step 4: Simplify right side
    103,664.48x = 9,973,098,435.86
  5. Step 5: Solve for x
    x = 9,973,098,435.86/103,664.48
  6. Step 6: Final answer
    x = 96,205.56

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1.5x scale

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.