Home / 111,560.36-153,901.76-66,212.60

Finding the Fourth Proportional to 111,560.36, 153,901.76 and 66,212.60

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Solution

The fourth proportional to 111,560.36, 153,901.76 and 66,212.60 is: 91,342.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,560.36 : 153,901.76 = 66,212.60 : x
  2. Step 2: Convert to fraction form
    111,560.36/153,901.76 = 66,212.60/x
  3. Step 3: Cross multiply
    111,560.36x = 153,901.76 × 66,212.60
  4. Step 4: Simplify right side
    111,560.36x = 10,190,234,573.60
  5. Step 5: Solve for x
    x = 10,190,234,573.60/111,560.36
  6. Step 6: Final answer
    x = 91,342.79

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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.