Home / 197,783.67-272,942.77-107,139.64

Finding the Fourth Proportional to 197,783.67, 272,942.77 and 107,139.64

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Solution

The fourth proportional to 197,783.67, 272,942.77 and 107,139.64 is: 147,853.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,783.67 : 272,942.77 = 107,139.64 : x
  2. Step 2: Convert to fraction form
    197,783.67/272,942.77 = 107,139.64/x
  3. Step 3: Cross multiply
    197,783.67x = 272,942.77 × 107,139.64
  4. Step 4: Simplify right side
    197,783.67x = 29,242,989,414.53
  5. Step 5: Solve for x
    x = 29,242,989,414.53/197,783.67
  6. Step 6: Final answer
    x = 147,853.41

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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.