Home / 147,156.20-203,061.48-82,610.64

Finding the Fourth Proportional to 147,156.20, 203,061.48 and 82,610.64

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Solution

The fourth proportional to 147,156.20, 203,061.48 and 82,610.64 is: 113,994.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,156.20 : 203,061.48 = 82,610.64 : x
  2. Step 2: Convert to fraction form
    147,156.20/203,061.48 = 82,610.64/x
  3. Step 3: Cross multiply
    147,156.20x = 203,061.48 × 82,610.64
  4. Step 4: Simplify right side
    147,156.20x = 16,775,038,822.15
  5. Step 5: Solve for x
    x = 16,775,038,822.15/147,156.20
  6. Step 6: Final answer
    x = 113,994.78

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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.