Home / 117,124,040.20-161,536,930.20-102,964,952.56

Finding the Fourth Proportional to 117,124,040.20, 161,536,930.20 and 102,964,952.56

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Solution

The fourth proportional to 117,124,040.20, 161,536,930.20 and 102,964,952.56 is: 142,008,782.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,124,040.20 : 161,536,930.20 = 102,964,952.56 : x
  2. Step 2: Convert to fraction form
    117,124,040.20/161,536,930.20 = 102,964,952.56/x
  3. Step 3: Cross multiply
    117,124,040.20x = 161,536,930.20 × 102,964,952.56
  4. Step 4: Simplify right side
    117,124,040.20x = 16,632,642,354,731,030
  5. Step 5: Solve for x
    x = 16,632,642,354,731,030/117,124,040.20
  6. Step 6: Final answer
    x = 142,008,782.54

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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.