Home / 190,311.20-262,645.50-105,436.16

Finding the Fourth Proportional to 190,311.20, 262,645.50 and 105,436.16

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Solution

The fourth proportional to 190,311.20, 262,645.50 and 105,436.16 is: 145,510.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,311.20 : 262,645.50 = 105,436.16 : x
  2. Step 2: Convert to fraction form
    190,311.20/262,645.50 = 105,436.16/x
  3. Step 3: Cross multiply
    190,311.20x = 262,645.50 × 105,436.16
  4. Step 4: Simplify right side
    190,311.20x = 27,692,332,961.28
  5. Step 5: Solve for x
    x = 27,692,332,961.28/190,311.20
  6. Step 6: Final answer
    x = 145,510.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.