Home / 181,872.80-272,809.20-82,145.60

Finding the Fourth Proportional to 181,872.80, 272,809.20 and 82,145.60

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Solution

The fourth proportional to 181,872.80, 272,809.20 and 82,145.60 is: 123,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,872.80 : 272,809.20 = 82,145.60 : x
  2. Step 2: Convert to fraction form
    181,872.80/272,809.20 = 82,145.60/x
  3. Step 3: Cross multiply
    181,872.80x = 272,809.20 × 82,145.60
  4. Step 4: Simplify right side
    181,872.80x = 22,410,075,419.52
  5. Step 5: Solve for x
    x = 22,410,075,419.52/181,872.80
  6. Step 6: Final answer
    x = 123,218.40

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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.