Home / 212,635.86-318,956.22-91,040.01

Finding the Fourth Proportional to 212,635.86, 318,956.22 and 91,040.01

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Solution

The fourth proportional to 212,635.86, 318,956.22 and 91,040.01 is: 136,561.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,635.86 : 318,956.22 = 91,040.01 : x
  2. Step 2: Convert to fraction form
    212,635.86/318,956.22 = 91,040.01/x
  3. Step 3: Cross multiply
    212,635.86x = 318,956.22 × 91,040.01
  4. Step 4: Simplify right side
    212,635.86x = 29,037,777,458.36
  5. Step 5: Solve for x
    x = 29,037,777,458.36/212,635.86
  6. Step 6: Final answer
    x = 136,561.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.