Home / 103,949.26-143,486.84-61,507.69

Finding the Fourth Proportional to 103,949.26, 143,486.84 and 61,507.69

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Solution

The fourth proportional to 103,949.26, 143,486.84 and 61,507.69 is: 84,902.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,949.26 : 143,486.84 = 61,507.69 : x
  2. Step 2: Convert to fraction form
    103,949.26/143,486.84 = 61,507.69/x
  3. Step 3: Cross multiply
    103,949.26x = 143,486.84 × 61,507.69
  4. Step 4: Simplify right side
    103,949.26x = 8,825,543,868.85
  5. Step 5: Solve for x
    x = 8,825,543,868.85/103,949.26
  6. Step 6: Final answer
    x = 84,902.42

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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.