Home / 181,725.09-272,438.58-81,855.33

Finding the Fourth Proportional to 181,725.09, 272,438.58 and 81,855.33

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Solution

The fourth proportional to 181,725.09, 272,438.58 and 81,855.33 is: 122,715.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,725.09 : 272,438.58 = 81,855.33 : x
  2. Step 2: Convert to fraction form
    181,725.09/272,438.58 = 81,855.33/x
  3. Step 3: Cross multiply
    181,725.09x = 272,438.58 × 81,855.33
  4. Step 4: Simplify right side
    181,725.09x = 22,300,549,870.63
  5. Step 5: Solve for x
    x = 22,300,549,870.63/181,725.09
  6. Step 6: Final answer
    x = 122,715.86

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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.