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Finding the Fourth Proportional to 100,075.77, 150,165.27 and 43,955.19

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Solution

The fourth proportional to 100,075.77, 150,165.27 and 43,955.19 is: 65,955.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,075.77 : 150,165.27 = 43,955.19 : x
  2. Step 2: Convert to fraction form
    100,075.77/150,165.27 = 43,955.19/x
  3. Step 3: Cross multiply
    100,075.77x = 150,165.27 × 43,955.19
  4. Step 4: Simplify right side
    100,075.77x = 6,600,542,974.25
  5. Step 5: Solve for x
    x = 6,600,542,974.25/100,075.77
  6. Step 6: Final answer
    x = 65,955.46

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1.5x scale

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.