Home / 197,764.47-272,914.29-107,120.25

Finding the Fourth Proportional to 197,764.47, 272,914.29 and 107,120.25

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Solution

The fourth proportional to 197,764.47, 272,914.29 and 107,120.25 is: 147,825.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,764.47 : 272,914.29 = 107,120.25 : x
  2. Step 2: Convert to fraction form
    197,764.47/272,914.29 = 107,120.25/x
  3. Step 3: Cross multiply
    197,764.47x = 272,914.29 × 107,120.25
  4. Step 4: Simplify right side
    197,764.47x = 29,234,646,973.37
  5. Step 5: Solve for x
    x = 29,234,646,973.37/197,764.47
  6. Step 6: Final answer
    x = 147,825.58

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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.