Home / 210,736.42-290,818.55-115,241.06

Finding the Fourth Proportional to 210,736.42, 290,818.55 and 115,241.06

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Solution

The fourth proportional to 210,736.42, 290,818.55 and 115,241.06 is: 159,033.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,736.42 : 290,818.55 = 115,241.06 : x
  2. Step 2: Convert to fraction form
    210,736.42/290,818.55 = 115,241.06/x
  3. Step 3: Cross multiply
    210,736.42x = 290,818.55 × 115,241.06
  4. Step 4: Simplify right side
    210,736.42x = 33,514,238,984.81
  5. Step 5: Solve for x
    x = 33,514,238,984.81/210,736.42
  6. Step 6: Final answer
    x = 159,033.92

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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.