Home / 154,583.42-213,313.99-86,588.90

Finding the Fourth Proportional to 154,583.42, 213,313.99 and 86,588.90

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Solution

The fourth proportional to 154,583.42, 213,313.99 and 86,588.90 is: 119,486.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,583.42 : 213,313.99 = 86,588.90 : x
  2. Step 2: Convert to fraction form
    154,583.42/213,313.99 = 86,588.90/x
  3. Step 3: Cross multiply
    154,583.42x = 213,313.99 × 86,588.90
  4. Step 4: Simplify right side
    154,583.42x = 18,470,622,249.20
  5. Step 5: Solve for x
    x = 18,470,622,249.20/154,583.42
  6. Step 6: Final answer
    x = 119,486.44

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1.5x scale

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.