Home / 154,514.54-213,212.44-86,522.06

Finding the Fourth Proportional to 154,514.54, 213,212.44 and 86,522.06

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Solution

The fourth proportional to 154,514.54, 213,212.44 and 86,522.06 is: 119,390.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,514.54 : 213,212.44 = 86,522.06 : x
  2. Step 2: Convert to fraction form
    154,514.54/213,212.44 = 86,522.06/x
  3. Step 3: Cross multiply
    154,514.54x = 213,212.44 × 86,522.06
  4. Step 4: Simplify right side
    154,514.54x = 18,447,579,526.43
  5. Step 5: Solve for x
    x = 18,447,579,526.43/154,514.54
  6. Step 6: Final answer
    x = 119,390.57

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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.