Home / 154,743.73-213,541.43-86,764.59

Finding the Fourth Proportional to 154,743.73, 213,541.43 and 86,764.59

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Solution

The fourth proportional to 154,743.73, 213,541.43 and 86,764.59 is: 119,732.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,743.73 : 213,541.43 = 86,764.59 : x
  2. Step 2: Convert to fraction form
    154,743.73/213,541.43 = 86,764.59/x
  3. Step 3: Cross multiply
    154,743.73x = 213,541.43 × 86,764.59
  4. Step 4: Simplify right side
    154,743.73x = 18,527,833,120.43
  5. Step 5: Solve for x
    x = 18,527,833,120.43/154,743.73
  6. Step 6: Final answer
    x = 119,732.37

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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.