Home / 201,836.13-278,533.86-112,412.13

Finding the Fourth Proportional to 201,836.13, 278,533.86 and 112,412.13

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Solution

The fourth proportional to 201,836.13, 278,533.86 and 112,412.13 is: 155,128.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,836.13 : 278,533.86 = 112,412.13 : x
  2. Step 2: Convert to fraction form
    201,836.13/278,533.86 = 112,412.13/x
  3. Step 3: Cross multiply
    201,836.13x = 278,533.86 × 112,412.13
  4. Step 4: Simplify right side
    201,836.13x = 31,310,584,479.72
  5. Step 5: Solve for x
    x = 31,310,584,479.72/201,836.13
  6. Step 6: Final answer
    x = 155,128.74

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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.