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Finding the Fourth Proportional to 139,463.54, 192,461.20 and 75,801.36

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Solution

The fourth proportional to 139,463.54, 192,461.20 and 75,801.36 is: 104,606.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,463.54 : 192,461.20 = 75,801.36 : x
  2. Step 2: Convert to fraction form
    139,463.54/192,461.20 = 75,801.36/x
  3. Step 3: Cross multiply
    139,463.54x = 192,461.20 × 75,801.36
  4. Step 4: Simplify right side
    139,463.54x = 14,588,820,707.23
  5. Step 5: Solve for x
    x = 14,588,820,707.23/139,463.54
  6. Step 6: Final answer
    x = 104,606.70

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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.