Home / 202,022.35-278,785.69-111,376.20

Finding the Fourth Proportional to 202,022.35, 278,785.69 and 111,376.20

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Solution

The fourth proportional to 202,022.35, 278,785.69 and 111,376.20 is: 153,696.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,022.35 : 278,785.69 = 111,376.20 : x
  2. Step 2: Convert to fraction form
    202,022.35/278,785.69 = 111,376.20/x
  3. Step 3: Cross multiply
    202,022.35x = 278,785.69 × 111,376.20
  4. Step 4: Simplify right side
    202,022.35x = 31,050,090,766.58
  5. Step 5: Solve for x
    x = 31,050,090,766.58/202,022.35
  6. Step 6: Final answer
    x = 153,696.32

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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.