Home / 208,158.21-312,248.37-66,014.69

Finding the Fourth Proportional to 208,158.21, 312,248.37 and 66,014.69

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Solution

The fourth proportional to 208,158.21, 312,248.37 and 66,014.69 is: 99,025.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,158.21 : 312,248.37 = 66,014.69 : x
  2. Step 2: Convert to fraction form
    208,158.21/312,248.37 = 66,014.69/x
  3. Step 3: Cross multiply
    208,158.21x = 312,248.37 × 66,014.69
  4. Step 4: Simplify right side
    208,158.21x = 20,612,978,034.87
  5. Step 5: Solve for x
    x = 20,612,978,034.87/208,158.21
  6. Step 6: Final answer
    x = 99,025.53

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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.