Home / 143,290.56-197,708.05-88,891.67

Finding the Fourth Proportional to 143,290.56, 197,708.05 and 88,891.67

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Solution

The fourth proportional to 143,290.56, 197,708.05 and 88,891.67 is: 122,650.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,290.56 : 197,708.05 = 88,891.67 : x
  2. Step 2: Convert to fraction form
    143,290.56/197,708.05 = 88,891.67/x
  3. Step 3: Cross multiply
    143,290.56x = 197,708.05 × 88,891.67
  4. Step 4: Simplify right side
    143,290.56x = 17,574,599,342.33
  5. Step 5: Solve for x
    x = 17,574,599,342.33/143,290.56
  6. Step 6: Final answer
    x = 122,650.08

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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.