Home / 198,684.90-274,176.81-112,649.67

Finding the Fourth Proportional to 198,684.90, 274,176.81 and 112,649.67

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Solution

The fourth proportional to 198,684.90, 274,176.81 and 112,649.67 is: 155,451.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,684.90 : 274,176.81 = 112,649.67 : x
  2. Step 2: Convert to fraction form
    198,684.90/274,176.81 = 112,649.67/x
  3. Step 3: Cross multiply
    198,684.90x = 274,176.81 × 112,649.67
  4. Step 4: Simplify right side
    198,684.90x = 30,885,925,797.27
  5. Step 5: Solve for x
    x = 30,885,925,797.27/198,684.90
  6. Step 6: Final answer
    x = 155,451.81

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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.