Home / 139,974.15-193,348.70-103,749.03

Finding the Fourth Proportional to 139,974.15, 193,348.70 and 103,749.03

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Solution

The fourth proportional to 139,974.15, 193,348.70 and 103,749.03 is: 143,310.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,974.15 : 193,348.70 = 103,749.03 : x
  2. Step 2: Convert to fraction form
    139,974.15/193,348.70 = 103,749.03/x
  3. Step 3: Cross multiply
    139,974.15x = 193,348.70 × 103,749.03
  4. Step 4: Simplify right side
    139,974.15x = 20,059,739,558.02
  5. Step 5: Solve for x
    x = 20,059,739,558.02/139,974.15
  6. Step 6: Final answer
    x = 143,310.32

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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.