Home / 201,944.11-278,681.72-111,300.15

Finding the Fourth Proportional to 201,944.11, 278,681.72 and 111,300.15

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Solution

The fourth proportional to 201,944.11, 278,681.72 and 111,300.15 is: 153,593.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,944.11 : 278,681.72 = 111,300.15 : x
  2. Step 2: Convert to fraction form
    201,944.11/278,681.72 = 111,300.15/x
  3. Step 3: Cross multiply
    201,944.11x = 278,681.72 × 111,300.15
  4. Step 4: Simplify right side
    201,944.11x = 31,017,317,238.26
  5. Step 5: Solve for x
    x = 31,017,317,238.26/201,944.11
  6. Step 6: Final answer
    x = 153,593.57

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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.