Home / 206,759.51-285,436.49-139,132.07

Finding the Fourth Proportional to 206,759.51, 285,436.49 and 139,132.07

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Solution

The fourth proportional to 206,759.51, 285,436.49 and 139,132.07 is: 192,075.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,759.51 : 285,436.49 = 139,132.07 : x
  2. Step 2: Convert to fraction form
    206,759.51/285,436.49 = 139,132.07/x
  3. Step 3: Cross multiply
    206,759.51x = 285,436.49 × 139,132.07
  4. Step 4: Simplify right side
    206,759.51x = 39,713,367,584.39
  5. Step 5: Solve for x
    x = 39,713,367,584.39/206,759.51
  6. Step 6: Final answer
    x = 192,075.17

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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.