Home / 120,858.08-181,290.69-57,684.85

Finding the Fourth Proportional to 120,858.08, 181,290.69 and 57,684.85

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Solution

The fourth proportional to 120,858.08, 181,290.69 and 57,684.85 is: 86,528.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,858.08 : 181,290.69 = 57,684.85 : x
  2. Step 2: Convert to fraction form
    120,858.08/181,290.69 = 57,684.85/x
  3. Step 3: Cross multiply
    120,858.08x = 181,290.69 × 57,684.85
  4. Step 4: Simplify right side
    120,858.08x = 10,457,725,805.82
  5. Step 5: Solve for x
    x = 10,457,725,805.82/120,858.08
  6. Step 6: Final answer
    x = 86,528.98

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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.