Home / 144,319.66-199,155.26-79,784.80

Finding the Fourth Proportional to 144,319.66, 199,155.26 and 79,784.80

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Solution

The fourth proportional to 144,319.66, 199,155.26 and 79,784.80 is: 110,099.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,319.66 : 199,155.26 = 79,784.80 : x
  2. Step 2: Convert to fraction form
    144,319.66/199,155.26 = 79,784.80/x
  3. Step 3: Cross multiply
    144,319.66x = 199,155.26 × 79,784.80
  4. Step 4: Simplify right side
    144,319.66x = 15,889,562,289.62
  5. Step 5: Solve for x
    x = 15,889,562,289.62/144,319.66
  6. Step 6: Final answer
    x = 110,099.77

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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.