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Finding the Fourth Proportional to 139,174.20, 192,059.54 and 75,510.62

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Solution

The fourth proportional to 139,174.20, 192,059.54 and 75,510.62 is: 104,204.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,174.20 : 192,059.54 = 75,510.62 : x
  2. Step 2: Convert to fraction form
    139,174.20/192,059.54 = 75,510.62/x
  3. Step 3: Cross multiply
    139,174.20x = 192,059.54 × 75,510.62
  4. Step 4: Simplify right side
    139,174.20x = 14,502,534,942.31
  5. Step 5: Solve for x
    x = 14,502,534,942.31/139,174.20
  6. Step 6: Final answer
    x = 104,204.19

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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.