Home / 144,339.64-199,183.35-80,678.50

Finding the Fourth Proportional to 144,339.64, 199,183.35 and 80,678.50

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Solution

The fourth proportional to 144,339.64, 199,183.35 and 80,678.50 is: 111,333.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,339.64 : 199,183.35 = 80,678.50 : x
  2. Step 2: Convert to fraction form
    144,339.64/199,183.35 = 80,678.50/x
  3. Step 3: Cross multiply
    144,339.64x = 199,183.35 × 80,678.50
  4. Step 4: Simplify right side
    144,339.64x = 16,069,813,707.56
  5. Step 5: Solve for x
    x = 16,069,813,707.56/144,339.64
  6. Step 6: Final answer
    x = 111,333.34

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1.5x scale

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.