Home / 111,517.02-153,883.26-66,187.26

Finding the Fourth Proportional to 111,517.02, 153,883.26 and 66,187.26

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Solution

The fourth proportional to 111,517.02, 153,883.26 and 66,187.26 is: 91,332.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,517.02 : 153,883.26 = 66,187.26 : x
  2. Step 2: Convert to fraction form
    111,517.02/153,883.26 = 66,187.26/x
  3. Step 3: Cross multiply
    111,517.02x = 153,883.26 × 66,187.26
  4. Step 4: Simplify right side
    111,517.02x = 10,185,111,339.27
  5. Step 5: Solve for x
    x = 10,185,111,339.27/111,517.02
  6. Step 6: Final answer
    x = 91,332.35

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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.