Home / 210,628.30-290,633.12-119,986.06

Finding the Fourth Proportional to 210,628.30, 290,633.12 and 119,986.06

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Solution

The fourth proportional to 210,628.30, 290,633.12 and 119,986.06 is: 165,561.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,628.30 : 290,633.12 = 119,986.06 : x
  2. Step 2: Convert to fraction form
    210,628.30/290,633.12 = 119,986.06/x
  3. Step 3: Cross multiply
    210,628.30x = 290,633.12 × 119,986.06
  4. Step 4: Simplify right side
    210,628.30x = 34,871,922,974.31
  5. Step 5: Solve for x
    x = 34,871,922,974.31/210,628.30
  6. Step 6: Final answer
    x = 165,561.43

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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.