Home / 147,218.85-203,146.76-82,695.33

Finding the Fourth Proportional to 147,218.85, 203,146.76 and 82,695.33

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Solution

The fourth proportional to 147,218.85, 203,146.76 and 82,695.33 is: 114,110.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,218.85 : 203,146.76 = 82,695.33 : x
  2. Step 2: Convert to fraction form
    147,218.85/203,146.76 = 82,695.33/x
  3. Step 3: Cross multiply
    147,218.85x = 203,146.76 × 82,695.33
  4. Step 4: Simplify right side
    147,218.85x = 16,799,287,943.15
  5. Step 5: Solve for x
    x = 16,799,287,943.15/147,218.85
  6. Step 6: Final answer
    x = 114,110.98

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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.