Home / 140,289.30-193,551.21-79,844.81

Finding the Fourth Proportional to 140,289.30, 193,551.21 and 79,844.81

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Solution

The fourth proportional to 140,289.30, 193,551.21 and 79,844.81 is: 110,158.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,289.30 : 193,551.21 = 79,844.81 : x
  2. Step 2: Convert to fraction form
    140,289.30/193,551.21 = 79,844.81/x
  3. Step 3: Cross multiply
    140,289.30x = 193,551.21 × 79,844.81
  4. Step 4: Simplify right side
    140,289.30x = 15,454,058,619.96
  5. Step 5: Solve for x
    x = 15,454,058,619.96/140,289.30
  6. Step 6: Final answer
    x = 110,158.50

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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.