Home / 158,176.12-218,286.54-86,556.10

Finding the Fourth Proportional to 158,176.12, 218,286.54 and 86,556.10

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Solution

The fourth proportional to 158,176.12, 218,286.54 and 86,556.10 is: 119,449.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,176.12 : 218,286.54 = 86,556.10 : x
  2. Step 2: Convert to fraction form
    158,176.12/218,286.54 = 86,556.10/x
  3. Step 3: Cross multiply
    158,176.12x = 218,286.54 × 86,556.10
  4. Step 4: Simplify right side
    158,176.12x = 18,894,031,584.89
  5. Step 5: Solve for x
    x = 18,894,031,584.89/158,176.12
  6. Step 6: Final answer
    x = 119,449.33

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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.