Home / 214,985.60-322,363.20-90,185.60

Finding the Fourth Proportional to 214,985.60, 322,363.20 and 90,185.60

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Solution

The fourth proportional to 214,985.60, 322,363.20 and 90,185.60 is: 135,230.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,985.60 : 322,363.20 = 90,185.60 : x
  2. Step 2: Convert to fraction form
    214,985.60/322,363.20 = 90,185.60/x
  3. Step 3: Cross multiply
    214,985.60x = 322,363.20 × 90,185.60
  4. Step 4: Simplify right side
    214,985.60x = 29,072,518,609.92
  5. Step 5: Solve for x
    x = 29,072,518,609.92/214,985.60
  6. Step 6: Final answer
    x = 135,230.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.