Home / 198,800.21-274,323.81-118,212.17

Finding the Fourth Proportional to 198,800.21, 274,323.81 and 118,212.17

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Solution

The fourth proportional to 198,800.21, 274,323.81 and 118,212.17 is: 163,120.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,800.21 : 274,323.81 = 118,212.17 : x
  2. Step 2: Convert to fraction form
    198,800.21/274,323.81 = 118,212.17/x
  3. Step 3: Cross multiply
    198,800.21x = 274,323.81 × 118,212.17
  4. Step 4: Simplify right side
    198,800.21x = 32,428,411,491.15
  5. Step 5: Solve for x
    x = 32,428,411,491.15/198,800.21
  6. Step 6: Final answer
    x = 163,120.61

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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.