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Finding the Fourth Proportional to 79,737.90, 119,606.85 and 69,369.90

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Solution

The fourth proportional to 79,737.90, 119,606.85 and 69,369.90 is: 104,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,737.90 : 119,606.85 = 69,369.90 : x
  2. Step 2: Convert to fraction form
    79,737.90/119,606.85 = 69,369.90/x
  3. Step 3: Cross multiply
    79,737.90x = 119,606.85 × 69,369.90
  4. Step 4: Simplify right side
    79,737.90x = 8,297,115,223.82
  5. Step 5: Solve for x
    x = 8,297,115,223.82/79,737.90
  6. Step 6: Final answer
    x = 104,054.85

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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.