Home / 149,739.63-206,635.28-82,670.19

Finding the Fourth Proportional to 149,739.63, 206,635.28 and 82,670.19

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Solution

The fourth proportional to 149,739.63, 206,635.28 and 82,670.19 is: 114,081.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,739.63 : 206,635.28 = 82,670.19 : x
  2. Step 2: Convert to fraction form
    149,739.63/206,635.28 = 82,670.19/x
  3. Step 3: Cross multiply
    149,739.63x = 206,635.28 × 82,670.19
  4. Step 4: Simplify right side
    149,739.63x = 17,082,577,444.95
  5. Step 5: Solve for x
    x = 17,082,577,444.95/149,739.63
  6. Step 6: Final answer
    x = 114,081.87

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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.