Home / 140,090.54-193,324.01-79,661.19

Finding the Fourth Proportional to 140,090.54, 193,324.01 and 79,661.19

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Solution

The fourth proportional to 140,090.54, 193,324.01 and 79,661.19 is: 109,931.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,090.54 : 193,324.01 = 79,661.19 : x
  2. Step 2: Convert to fraction form
    140,090.54/193,324.01 = 79,661.19/x
  3. Step 3: Cross multiply
    140,090.54x = 193,324.01 × 79,661.19
  4. Step 4: Simplify right side
    140,090.54x = 15,400,420,692.17
  5. Step 5: Solve for x
    x = 15,400,420,692.17/140,090.54
  6. Step 6: Final answer
    x = 109,931.91

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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.