Home / 139,450.75-192,948.69-121,582.96

Finding the Fourth Proportional to 139,450.75, 192,948.69 and 121,582.96

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Solution

The fourth proportional to 139,450.75, 192,948.69 and 121,582.96 is: 168,226.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,450.75 : 192,948.69 = 121,582.96 : x
  2. Step 2: Convert to fraction form
    139,450.75/192,948.69 = 121,582.96/x
  3. Step 3: Cross multiply
    139,450.75x = 192,948.69 × 121,582.96
  4. Step 4: Simplify right side
    139,450.75x = 23,459,272,858.32
  5. Step 5: Solve for x
    x = 23,459,272,858.32/139,450.75
  6. Step 6: Final answer
    x = 168,226.22

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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.