Home / 259,075.39-388,626.96-81,596.23

Finding the Fourth Proportional to 259,075.39, 388,626.96 and 81,596.23

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Solution

The fourth proportional to 259,075.39, 388,626.96 and 81,596.23 is: 122,398.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,075.39 : 388,626.96 = 81,596.23 : x
  2. Step 2: Convert to fraction form
    259,075.39/388,626.96 = 81,596.23/x
  3. Step 3: Cross multiply
    259,075.39x = 388,626.96 × 81,596.23
  4. Step 4: Simplify right side
    259,075.39x = 31,710,494,812.36
  5. Step 5: Solve for x
    x = 31,710,494,812.36/259,075.39
  6. Step 6: Final answer
    x = 122,398.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.