Home / 199,011.36-274,168.46-138,478.02

Finding the Fourth Proportional to 199,011.36, 274,168.46 and 138,478.02

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Solution

The fourth proportional to 199,011.36, 274,168.46 and 138,478.02 is: 190,774.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,011.36 : 274,168.46 = 138,478.02 : x
  2. Step 2: Convert to fraction form
    199,011.36/274,168.46 = 138,478.02/x
  3. Step 3: Cross multiply
    199,011.36x = 274,168.46 × 138,478.02
  4. Step 4: Simplify right side
    199,011.36x = 37,966,305,487.25
  5. Step 5: Solve for x
    x = 37,966,305,487.25/199,011.36
  6. Step 6: Final answer
    x = 190,774.56

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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.