Home / 189,199.37-261,097.16-103,157.66

Finding the Fourth Proportional to 189,199.37, 261,097.16 and 103,157.66

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Solution

The fourth proportional to 189,199.37, 261,097.16 and 103,157.66 is: 142,358.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,199.37 : 261,097.16 = 103,157.66 : x
  2. Step 2: Convert to fraction form
    189,199.37/261,097.16 = 103,157.66/x
  3. Step 3: Cross multiply
    189,199.37x = 261,097.16 × 103,157.66
  4. Step 4: Simplify right side
    189,199.37x = 26,934,170,236.97
  5. Step 5: Solve for x
    x = 26,934,170,236.97/189,199.37
  6. Step 6: Final answer
    x = 142,358.67

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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.