Home / 199,654.74-275,491.05-117,971.64

Finding the Fourth Proportional to 199,654.74, 275,491.05 and 117,971.64

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Solution

The fourth proportional to 199,654.74, 275,491.05 and 117,971.64 is: 162,781.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,654.74 : 275,491.05 = 117,971.64 : x
  2. Step 2: Convert to fraction form
    199,654.74/275,491.05 = 117,971.64/x
  3. Step 3: Cross multiply
    199,654.74x = 275,491.05 × 117,971.64
  4. Step 4: Simplify right side
    199,654.74x = 32,500,129,006.51
  5. Step 5: Solve for x
    x = 32,500,129,006.51/199,654.74
  6. Step 6: Final answer
    x = 162,781.66

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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.