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Finding the Fourth Proportional to 125,968, 173,835.84 and 69,379.20

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Solution

The fourth proportional to 125,968, 173,835.84 and 69,379.20 is: 95,743.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,968 : 173,835.84 = 69,379.20 : x
  2. Step 2: Convert to fraction form
    125,968/173,835.84 = 69,379.20/x
  3. Step 3: Cross multiply
    125,968x = 173,835.84 × 69,379.20
  4. Step 4: Simplify right side
    125,968x = 12,060,591,510.53
  5. Step 5: Solve for x
    x = 12,060,591,510.53/125,968
  6. Step 6: Final answer
    x = 95,743.30

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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.