Home / 202,080.40-278,864.56-111,440.19

Finding the Fourth Proportional to 202,080.40, 278,864.56 and 111,440.19

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Solution

The fourth proportional to 202,080.40, 278,864.56 and 111,440.19 is: 153,783.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,080.40 : 278,864.56 = 111,440.19 : x
  2. Step 2: Convert to fraction form
    202,080.40/278,864.56 = 111,440.19/x
  3. Step 3: Cross multiply
    202,080.40x = 278,864.56 × 111,440.19
  4. Step 4: Simplify right side
    202,080.40x = 31,076,719,550.67
  5. Step 5: Solve for x
    x = 31,076,719,550.67/202,080.40
  6. Step 6: Final answer
    x = 153,783.94

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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.