Home / 193,387.26-290,080.50-109,109.18

Finding the Fourth Proportional to 193,387.26, 290,080.50 and 109,109.18

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Solution

The fourth proportional to 193,387.26, 290,080.50 and 109,109.18 is: 163,663.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,387.26 : 290,080.50 = 109,109.18 : x
  2. Step 2: Convert to fraction form
    193,387.26/290,080.50 = 109,109.18/x
  3. Step 3: Cross multiply
    193,387.26x = 290,080.50 × 109,109.18
  4. Step 4: Simplify right side
    193,387.26x = 31,650,444,038.59
  5. Step 5: Solve for x
    x = 31,650,444,038.59/193,387.26
  6. Step 6: Final answer
    x = 163,663.54

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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.