Home / 155,137.08-214,089.20-86,226.54

Finding the Fourth Proportional to 155,137.08, 214,089.20 and 86,226.54

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Solution

The fourth proportional to 155,137.08, 214,089.20 and 86,226.54 is: 118,992.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,137.08 : 214,089.20 = 86,226.54 : x
  2. Step 2: Convert to fraction form
    155,137.08/214,089.20 = 86,226.54/x
  3. Step 3: Cross multiply
    155,137.08x = 214,089.20 × 86,226.54
  4. Step 4: Simplify right side
    155,137.08x = 18,460,170,967.37
  5. Step 5: Solve for x
    x = 18,460,170,967.37/155,137.08
  6. Step 6: Final answer
    x = 118,992.64

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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.