Home / 136,675.20-188,535.96-80,075.64

Finding the Fourth Proportional to 136,675.20, 188,535.96 and 80,075.64

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Solution

The fourth proportional to 136,675.20, 188,535.96 and 80,075.64 is: 110,459.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,675.20 : 188,535.96 = 80,075.64 : x
  2. Step 2: Convert to fraction form
    136,675.20/188,535.96 = 80,075.64/x
  3. Step 3: Cross multiply
    136,675.20x = 188,535.96 × 80,075.64
  4. Step 4: Simplify right side
    136,675.20x = 15,097,137,660.01
  5. Step 5: Solve for x
    x = 15,097,137,660.01/136,675.20
  6. Step 6: Final answer
    x = 110,459.96

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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.