Home / 190,143.15-262,385.60-111,583.95

Finding the Fourth Proportional to 190,143.15, 262,385.60 and 111,583.95

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Solution

The fourth proportional to 190,143.15, 262,385.60 and 111,583.95 is: 153,978.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,143.15 : 262,385.60 = 111,583.95 : x
  2. Step 2: Convert to fraction form
    190,143.15/262,385.60 = 111,583.95/x
  3. Step 3: Cross multiply
    190,143.15x = 262,385.60 × 111,583.95
  4. Step 4: Simplify right side
    190,143.15x = 29,278,021,113.20
  5. Step 5: Solve for x
    x = 29,278,021,113.20/190,143.15
  6. Step 6: Final answer
    x = 153,978.84

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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.