Home / 140,286.09-193,595.39-79,033.01

Finding the Fourth Proportional to 140,286.09, 193,595.39 and 79,033.01

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Solution

The fourth proportional to 140,286.09, 193,595.39 and 79,033.01 is: 109,065.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,286.09 : 193,595.39 = 79,033.01 : x
  2. Step 2: Convert to fraction form
    140,286.09/193,595.39 = 79,033.01/x
  3. Step 3: Cross multiply
    140,286.09x = 193,595.39 × 79,033.01
  4. Step 4: Simplify right side
    140,286.09x = 15,300,427,075.39
  5. Step 5: Solve for x
    x = 15,300,427,075.39/140,286.09
  6. Step 6: Final answer
    x = 109,065.89

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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.