Home / 139,622.42-192,592.54-121,760.30

Finding the Fourth Proportional to 139,622.42, 192,592.54 and 121,760.30

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Solution

The fourth proportional to 139,622.42, 192,592.54 and 121,760.30 is: 167,953.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,622.42 : 192,592.54 = 121,760.30 : x
  2. Step 2: Convert to fraction form
    139,622.42/192,592.54 = 121,760.30/x
  3. Step 3: Cross multiply
    139,622.42x = 192,592.54 × 121,760.30
  4. Step 4: Simplify right side
    139,622.42x = 23,450,125,448.16
  5. Step 5: Solve for x
    x = 23,450,125,448.16/139,622.42
  6. Step 6: Final answer
    x = 167,953.87

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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.