Home / 139,750.44-192,852.58-81,617.18

Finding the Fourth Proportional to 139,750.44, 192,852.58 and 81,617.18

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Solution

The fourth proportional to 139,750.44, 192,852.58 and 81,617.18 is: 112,629.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,750.44 : 192,852.58 = 81,617.18 : x
  2. Step 2: Convert to fraction form
    139,750.44/192,852.58 = 81,617.18/x
  3. Step 3: Cross multiply
    139,750.44x = 192,852.58 × 81,617.18
  4. Step 4: Simplify right side
    139,750.44x = 15,740,082,567.02
  5. Step 5: Solve for x
    x = 15,740,082,567.02/139,750.44
  6. Step 6: Final answer
    x = 112,629.93

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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.