Home / 144,921.56-199,988.66-80,380.36

Finding the Fourth Proportional to 144,921.56, 199,988.66 and 80,380.36

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Solution

The fourth proportional to 144,921.56, 199,988.66 and 80,380.36 is: 110,923.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,921.56 : 199,988.66 = 80,380.36 : x
  2. Step 2: Convert to fraction form
    144,921.56/199,988.66 = 80,380.36/x
  3. Step 3: Cross multiply
    144,921.56x = 199,988.66 × 80,380.36
  4. Step 4: Simplify right side
    144,921.56x = 16,075,160,486.72
  5. Step 5: Solve for x
    x = 16,075,160,486.72/144,921.56
  6. Step 6: Final answer
    x = 110,923.18

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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.