Home / 197,157.69-272,168.42-115,474.59

Finding the Fourth Proportional to 197,157.69, 272,168.42 and 115,474.59

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Solution

The fourth proportional to 197,157.69, 272,168.42 and 115,474.59 is: 159,408.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,157.69 : 272,168.42 = 115,474.59 : x
  2. Step 2: Convert to fraction form
    197,157.69/272,168.42 = 115,474.59/x
  3. Step 3: Cross multiply
    197,157.69x = 272,168.42 × 115,474.59
  4. Step 4: Simplify right side
    197,157.69x = 31,428,536,133.07
  5. Step 5: Solve for x
    x = 31,428,536,133.07/197,157.69
  6. Step 6: Final answer
    x = 159,408.12

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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.