Home / 198,767.88-274,291.63-108,123.95

Finding the Fourth Proportional to 198,767.88, 274,291.63 and 108,123.95

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Solution

The fourth proportional to 198,767.88, 274,291.63 and 108,123.95 is: 149,206.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,767.88 : 274,291.63 = 108,123.95 : x
  2. Step 2: Convert to fraction form
    198,767.88/274,291.63 = 108,123.95/x
  3. Step 3: Cross multiply
    198,767.88x = 274,291.63 × 108,123.95
  4. Step 4: Simplify right side
    198,767.88x = 29,657,492,575.46
  5. Step 5: Solve for x
    x = 29,657,492,575.46/198,767.88
  6. Step 6: Final answer
    x = 149,206.67

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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.