Home / 210,629.28-290,634.51-119,987.04

Finding the Fourth Proportional to 210,629.28, 290,634.51 and 119,987.04

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Solution

The fourth proportional to 210,629.28, 290,634.51 and 119,987.04 is: 165,562.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,629.28 : 290,634.51 = 119,987.04 : x
  2. Step 2: Convert to fraction form
    210,629.28/290,634.51 = 119,987.04/x
  3. Step 3: Cross multiply
    210,629.28x = 290,634.51 × 119,987.04
  4. Step 4: Simplify right side
    210,629.28x = 34,872,374,576.75
  5. Step 5: Solve for x
    x = 34,872,374,576.75/210,629.28
  6. Step 6: Final answer
    x = 165,562.81

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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.