Home / 144,209.96-199,013.76-79,683.36

Finding the Fourth Proportional to 144,209.96, 199,013.76 and 79,683.36

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Solution

The fourth proportional to 144,209.96, 199,013.76 and 79,683.36 is: 109,965.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,209.96 : 199,013.76 = 79,683.36 : x
  2. Step 2: Convert to fraction form
    144,209.96/199,013.76 = 79,683.36/x
  3. Step 3: Cross multiply
    144,209.96x = 199,013.76 × 79,683.36
  4. Step 4: Simplify right side
    144,209.96x = 15,858,085,083.03
  5. Step 5: Solve for x
    x = 15,858,085,083.03/144,209.96
  6. Step 6: Final answer
    x = 109,965.26

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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.