Home / 216,490.14-298,765.64-120,996.86

Finding the Fourth Proportional to 216,490.14, 298,765.64 and 120,996.86

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Solution

The fourth proportional to 216,490.14, 298,765.64 and 120,996.86 is: 166,980.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,490.14 : 298,765.64 = 120,996.86 : x
  2. Step 2: Convert to fraction form
    216,490.14/298,765.64 = 120,996.86/x
  3. Step 3: Cross multiply
    216,490.14x = 298,765.64 × 120,996.86
  4. Step 4: Simplify right side
    216,490.14x = 36,149,703,124.55
  5. Step 5: Solve for x
    x = 36,149,703,124.55/216,490.14
  6. Step 6: Final answer
    x = 166,980.83

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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.