Home / 147,739.24-203,880.90-80,671.24

Finding the Fourth Proportional to 147,739.24, 203,880.90 and 80,671.24

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Solution

The fourth proportional to 147,739.24, 203,880.90 and 80,671.24 is: 111,326.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,739.24 : 203,880.90 = 80,671.24 : x
  2. Step 2: Convert to fraction form
    147,739.24/203,880.90 = 80,671.24/x
  3. Step 3: Cross multiply
    147,739.24x = 203,880.90 × 80,671.24
  4. Step 4: Simplify right side
    147,739.24x = 16,447,325,015.32
  5. Step 5: Solve for x
    x = 16,447,325,015.32/147,739.24
  6. Step 6: Final answer
    x = 111,326.72

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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.