Home / 136,504.08-188,559.63-123,771.69

Finding the Fourth Proportional to 136,504.08, 188,559.63 and 123,771.69

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Solution

The fourth proportional to 136,504.08, 188,559.63 and 123,771.69 is: 170,971.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,504.08 : 188,559.63 = 123,771.69 : x
  2. Step 2: Convert to fraction form
    136,504.08/188,559.63 = 123,771.69/x
  3. Step 3: Cross multiply
    136,504.08x = 188,559.63 × 123,771.69
  4. Step 4: Simplify right side
    136,504.08x = 23,338,344,070.87
  5. Step 5: Solve for x
    x = 23,338,344,070.87/136,504.08
  6. Step 6: Final answer
    x = 170,971.77

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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.