Home / 201,936.16-278,671.90-111,292.13

Finding the Fourth Proportional to 201,936.16, 278,671.90 and 111,292.13

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Solution

The fourth proportional to 201,936.16, 278,671.90 and 111,292.13 is: 153,583.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,936.16 : 278,671.90 = 111,292.13 : x
  2. Step 2: Convert to fraction form
    201,936.16/278,671.90 = 111,292.13/x
  3. Step 3: Cross multiply
    201,936.16x = 278,671.90 × 111,292.13
  4. Step 4: Simplify right side
    201,936.16x = 31,013,988,799.09
  5. Step 5: Solve for x
    x = 31,013,988,799.09/201,936.16
  6. Step 6: Final answer
    x = 153,583.13

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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.