Home / 206,876.09-310,332.09-57,116.45

Finding the Fourth Proportional to 206,876.09, 310,332.09 and 57,116.45

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Solution

The fourth proportional to 206,876.09, 310,332.09 and 57,116.45 is: 85,679.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,876.09 : 310,332.09 = 57,116.45 : x
  2. Step 2: Convert to fraction form
    206,876.09/310,332.09 = 57,116.45/x
  3. Step 3: Cross multiply
    206,876.09x = 310,332.09 × 57,116.45
  4. Step 4: Simplify right side
    206,876.09x = 17,725,067,301.88
  5. Step 5: Solve for x
    x = 17,725,067,301.88/206,876.09
  6. Step 6: Final answer
    x = 85,679.63

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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.