Home / 144,485.80-199,381.14-80,812.60

Finding the Fourth Proportional to 144,485.80, 199,381.14 and 80,812.60

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Solution

The fourth proportional to 144,485.80, 199,381.14 and 80,812.60 is: 111,516.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,485.80 : 199,381.14 = 80,812.60 : x
  2. Step 2: Convert to fraction form
    144,485.80/199,381.14 = 80,812.60/x
  3. Step 3: Cross multiply
    144,485.80x = 199,381.14 × 80,812.60
  4. Step 4: Simplify right side
    144,485.80x = 16,112,508,314.36
  5. Step 5: Solve for x
    x = 16,112,508,314.36/144,485.80
  6. Step 6: Final answer
    x = 111,516.21

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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.