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Finding the Fourth Proportional to 125,808, 173,617.74 and 69,219.48

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Solution

The fourth proportional to 125,808, 173,617.74 and 69,219.48 is: 95,524.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,808 : 173,617.74 = 69,219.48 : x
  2. Step 2: Convert to fraction form
    125,808/173,617.74 = 69,219.48/x
  3. Step 3: Cross multiply
    125,808x = 173,617.74 × 69,219.48
  4. Step 4: Simplify right side
    125,808x = 12,017,729,681.58
  5. Step 5: Solve for x
    x = 12,017,729,681.58/125,808
  6. Step 6: Final answer
    x = 95,524.37

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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.