Home / 152,876.09-210,964.92-84,891.29

Finding the Fourth Proportional to 152,876.09, 210,964.92 and 84,891.29

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Solution

The fourth proportional to 152,876.09, 210,964.92 and 84,891.29 is: 117,147.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,876.09 : 210,964.92 = 84,891.29 : x
  2. Step 2: Convert to fraction form
    152,876.09/210,964.92 = 84,891.29/x
  3. Step 3: Cross multiply
    152,876.09x = 210,964.92 × 84,891.29
  4. Step 4: Simplify right side
    152,876.09x = 17,909,084,203.55
  5. Step 5: Solve for x
    x = 17,909,084,203.55/152,876.09
  6. Step 6: Final answer
    x = 117,147.71

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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.