Home / 201,712.28-278,351.99-111,051.05

Finding the Fourth Proportional to 201,712.28, 278,351.99 and 111,051.05

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Solution

The fourth proportional to 201,712.28, 278,351.99 and 111,051.05 is: 153,244.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,712.28 : 278,351.99 = 111,051.05 : x
  2. Step 2: Convert to fraction form
    201,712.28/278,351.99 = 111,051.05/x
  3. Step 3: Cross multiply
    201,712.28x = 278,351.99 × 111,051.05
  4. Step 4: Simplify right side
    201,712.28x = 30,911,278,812.07
  5. Step 5: Solve for x
    x = 30,911,278,812.07/201,712.28
  6. Step 6: Final answer
    x = 153,244.41

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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.