Home / 145,865.94-219,194.22-79,355.22

Finding the Fourth Proportional to 145,865.94, 219,194.22 and 79,355.22

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Solution

The fourth proportional to 145,865.94, 219,194.22 and 79,355.22 is: 119,247.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,865.94 : 219,194.22 = 79,355.22 : x
  2. Step 2: Convert to fraction form
    145,865.94/219,194.22 = 79,355.22/x
  3. Step 3: Cross multiply
    145,865.94x = 219,194.22 × 79,355.22
  4. Step 4: Simplify right side
    145,865.94x = 17,394,205,550.83
  5. Step 5: Solve for x
    x = 17,394,205,550.83/145,865.94
  6. Step 6: Final answer
    x = 119,247.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.