Home / 139,487.85-192,490.97-75,827.25

Finding the Fourth Proportional to 139,487.85, 192,490.97 and 75,827.25

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Solution

The fourth proportional to 139,487.85, 192,490.97 and 75,827.25 is: 104,640.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,487.85 : 192,490.97 = 75,827.25 : x
  2. Step 2: Convert to fraction form
    139,487.85/192,490.97 = 75,827.25/x
  3. Step 3: Cross multiply
    139,487.85x = 192,490.97 × 75,827.25
  4. Step 4: Simplify right side
    139,487.85x = 14,596,060,525.80
  5. Step 5: Solve for x
    x = 14,596,060,525.80/139,487.85
  6. Step 6: Final answer
    x = 104,640.37

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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.