Home / 206,971.75-285,621.29-117,547.75

Finding the Fourth Proportional to 206,971.75, 285,621.29 and 117,547.75

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Solution

The fourth proportional to 206,971.75, 285,621.29 and 117,547.75 is: 162,216.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,971.75 : 285,621.29 = 117,547.75 : x
  2. Step 2: Convert to fraction form
    206,971.75/285,621.29 = 117,547.75/x
  3. Step 3: Cross multiply
    206,971.75x = 285,621.29 × 117,547.75
  4. Step 4: Simplify right side
    206,971.75x = 33,574,139,991.60
  5. Step 5: Solve for x
    x = 33,574,139,991.60/206,971.75
  6. Step 6: Final answer
    x = 162,216.05

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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.