Home / 111,571.02-153,923.49-71,274.33

Finding the Fourth Proportional to 111,571.02, 153,923.49 and 71,274.33

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Solution

The fourth proportional to 111,571.02, 153,923.49 and 71,274.33 is: 98,330.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,571.02 : 153,923.49 = 71,274.33 : x
  2. Step 2: Convert to fraction form
    111,571.02/153,923.49 = 71,274.33/x
  3. Step 3: Cross multiply
    111,571.02x = 153,923.49 × 71,274.33
  4. Step 4: Simplify right side
    111,571.02x = 10,970,793,621.01
  5. Step 5: Solve for x
    x = 10,970,793,621.01/111,571.02
  6. Step 6: Final answer
    x = 98,330.14

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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.