Home / 212,040.86-318,113.58-105,475.37

Finding the Fourth Proportional to 212,040.86, 318,113.58 and 105,475.37

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Solution

The fourth proportional to 212,040.86, 318,113.58 and 105,475.37 is: 158,239.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,040.86 : 318,113.58 = 105,475.37 : x
  2. Step 2: Convert to fraction form
    212,040.86/318,113.58 = 105,475.37/x
  3. Step 3: Cross multiply
    212,040.86x = 318,113.58 × 105,475.37
  4. Step 4: Simplify right side
    212,040.86x = 33,553,145,764.19
  5. Step 5: Solve for x
    x = 33,553,145,764.19/212,040.86
  6. Step 6: Final answer
    x = 158,239.05

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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.