Home / 103,855.29-143,338.97-99,122.27

Finding the Fourth Proportional to 103,855.29, 143,338.97 and 99,122.27

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Solution

The fourth proportional to 103,855.29, 143,338.97 and 99,122.27 is: 136,806.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,855.29 : 143,338.97 = 99,122.27 : x
  2. Step 2: Convert to fraction form
    103,855.29/143,338.97 = 99,122.27/x
  3. Step 3: Cross multiply
    103,855.29x = 143,338.97 × 99,122.27
  4. Step 4: Simplify right side
    103,855.29x = 14,208,082,873.56
  5. Step 5: Solve for x
    x = 14,208,082,873.56/103,855.29
  6. Step 6: Final answer
    x = 136,806.54

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1.5x scale

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.