Home / 154,916.58-213,764.40-86,930.94

Finding the Fourth Proportional to 154,916.58, 213,764.40 and 86,930.94

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Solution

The fourth proportional to 154,916.58, 213,764.40 and 86,930.94 is: 119,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,916.58 : 213,764.40 = 86,930.94 : x
  2. Step 2: Convert to fraction form
    154,916.58/213,764.40 = 86,930.94/x
  3. Step 3: Cross multiply
    154,916.58x = 213,764.40 × 86,930.94
  4. Step 4: Simplify right side
    154,916.58x = 18,582,740,230.54
  5. Step 5: Solve for x
    x = 18,582,740,230.54/154,916.58
  6. Step 6: Final answer
    x = 119,953.20

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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.