Home / 139,372.98-192,336.77-75,712.02

Finding the Fourth Proportional to 139,372.98, 192,336.77 and 75,712.02

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Solution

The fourth proportional to 139,372.98, 192,336.77 and 75,712.02 is: 104,483.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,372.98 : 192,336.77 = 75,712.02 : x
  2. Step 2: Convert to fraction form
    139,372.98/192,336.77 = 75,712.02/x
  3. Step 3: Cross multiply
    139,372.98x = 192,336.77 × 75,712.02
  4. Step 4: Simplify right side
    139,372.98x = 14,562,205,376.98
  5. Step 5: Solve for x
    x = 14,562,205,376.98/139,372.98
  6. Step 6: Final answer
    x = 104,483.71

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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.