Home / 158,176.89-218,284.10-86,556.92

Finding the Fourth Proportional to 158,176.89, 218,284.10 and 86,556.92

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Solution

The fourth proportional to 158,176.89, 218,284.10 and 86,556.92 is: 119,448.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,176.89 : 218,284.10 = 86,556.92 : x
  2. Step 2: Convert to fraction form
    158,176.89/218,284.10 = 86,556.92/x
  3. Step 3: Cross multiply
    158,176.89x = 218,284.10 × 86,556.92
  4. Step 4: Simplify right side
    158,176.89x = 18,893,998,181.36
  5. Step 5: Solve for x
    x = 18,893,998,181.36/158,176.89
  6. Step 6: Final answer
    x = 119,448.54

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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.