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Finding the Fourth Proportional to 139,296.89, 192,224.32 and 75,633.23

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Solution

The fourth proportional to 139,296.89, 192,224.32 and 75,633.23 is: 104,370.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,296.89 : 192,224.32 = 75,633.23 : x
  2. Step 2: Convert to fraction form
    139,296.89/192,224.32 = 75,633.23/x
  3. Step 3: Cross multiply
    139,296.89x = 192,224.32 × 75,633.23
  4. Step 4: Simplify right side
    139,296.89x = 14,538,545,055.95
  5. Step 5: Solve for x
    x = 14,538,545,055.95/139,296.89
  6. Step 6: Final answer
    x = 104,370.93

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1.5x scale

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.