Home / 154,358.73-213,026.49-86,382.52

Finding the Fourth Proportional to 154,358.73, 213,026.49 and 86,382.52

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Solution

The fourth proportional to 154,358.73, 213,026.49 and 86,382.52 is: 119,214.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,358.73 : 213,026.49 = 86,382.52 : x
  2. Step 2: Convert to fraction form
    154,358.73/213,026.49 = 86,382.52/x
  3. Step 3: Cross multiply
    154,358.73x = 213,026.49 × 86,382.52
  4. Step 4: Simplify right side
    154,358.73x = 18,401,764,500.39
  5. Step 5: Solve for x
    x = 18,401,764,500.39/154,358.73
  6. Step 6: Final answer
    x = 119,214.28

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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.