Home / 199,139.56-274,627.98-145,339.36

Finding the Fourth Proportional to 199,139.56, 274,627.98 and 145,339.36

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Solution

The fourth proportional to 199,139.56, 274,627.98 and 145,339.36 is: 200,433.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,139.56 : 274,627.98 = 145,339.36 : x
  2. Step 2: Convert to fraction form
    199,139.56/274,627.98 = 145,339.36/x
  3. Step 3: Cross multiply
    199,139.56x = 274,627.98 × 145,339.36
  4. Step 4: Simplify right side
    199,139.56x = 39,914,254,851.29
  5. Step 5: Solve for x
    x = 39,914,254,851.29/199,139.56
  6. Step 6: Final answer
    x = 200,433.58

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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.