Home / 191,940.09-264,962.26-123,990.20

Finding the Fourth Proportional to 191,940.09, 264,962.26 and 123,990.20

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Solution

The fourth proportional to 191,940.09, 264,962.26 and 123,990.20 is: 171,161.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,940.09 : 264,962.26 = 123,990.20 : x
  2. Step 2: Convert to fraction form
    191,940.09/264,962.26 = 123,990.20/x
  3. Step 3: Cross multiply
    191,940.09x = 264,962.26 × 123,990.20
  4. Step 4: Simplify right side
    191,940.09x = 32,852,721,975.07
  5. Step 5: Solve for x
    x = 32,852,721,975.07/191,940.09
  6. Step 6: Final answer
    x = 171,161.33

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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.