Home / 199,023.18-274,649.28-112,981.41

Finding the Fourth Proportional to 199,023.18, 274,649.28 and 112,981.41

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Solution

The fourth proportional to 199,023.18, 274,649.28 and 112,981.41 is: 155,912.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,023.18 : 274,649.28 = 112,981.41 : x
  2. Step 2: Convert to fraction form
    199,023.18/274,649.28 = 112,981.41/x
  3. Step 3: Cross multiply
    199,023.18x = 274,649.28 × 112,981.41
  4. Step 4: Simplify right side
    199,023.18x = 31,030,262,486.20
  5. Step 5: Solve for x
    x = 31,030,262,486.20/199,023.18
  6. Step 6: Final answer
    x = 155,912.81

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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.