Home / 197,166.64-272,116.43-111,142.37

Finding the Fourth Proportional to 197,166.64, 272,116.43 and 111,142.37

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Solution

The fourth proportional to 197,166.64, 272,116.43 and 111,142.37 is: 153,391.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,166.64 : 272,116.43 = 111,142.37 : x
  2. Step 2: Convert to fraction form
    197,166.64/272,116.43 = 111,142.37/x
  3. Step 3: Cross multiply
    197,166.64x = 272,116.43 × 111,142.37
  4. Step 4: Simplify right side
    197,166.64x = 30,243,664,946.14
  5. Step 5: Solve for x
    x = 30,243,664,946.14/197,166.64
  6. Step 6: Final answer
    x = 153,391.39

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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.