Home / 202,080.90-278,865.24-111,440.70

Finding the Fourth Proportional to 202,080.90, 278,865.24 and 111,440.70

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Solution

The fourth proportional to 202,080.90, 278,865.24 and 111,440.70 is: 153,784.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,080.90 : 278,865.24 = 111,440.70 : x
  2. Step 2: Convert to fraction form
    202,080.90/278,865.24 = 111,440.70/x
  3. Step 3: Cross multiply
    202,080.90x = 278,865.24 × 111,440.70
  4. Step 4: Simplify right side
    202,080.90x = 31,076,937,551.27
  5. Step 5: Solve for x
    x = 31,076,937,551.27/202,080.90
  6. Step 6: Final answer
    x = 153,784.64

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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.