Home / 198,619.47-274,094.28-107,975.34

Finding the Fourth Proportional to 198,619.47, 274,094.28 and 107,975.34

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Solution

The fourth proportional to 198,619.47, 274,094.28 and 107,975.34 is: 149,005.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,619.47 : 274,094.28 = 107,975.34 : x
  2. Step 2: Convert to fraction form
    198,619.47/274,094.28 = 107,975.34/x
  3. Step 3: Cross multiply
    198,619.47x = 274,094.28 × 107,975.34
  4. Step 4: Simplify right side
    198,619.47x = 29,595,423,075.06
  5. Step 5: Solve for x
    x = 29,595,423,075.06/198,619.47
  6. Step 6: Final answer
    x = 149,005.65

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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.