Home / 356,421.39-534,633.18-90,181.86

Finding the Fourth Proportional to 356,421.39, 534,633.18 and 90,181.86

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Solution

The fourth proportional to 356,421.39, 534,633.18 and 90,181.86 is: 135,273.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,421.39 : 534,633.18 = 90,181.86 : x
  2. Step 2: Convert to fraction form
    356,421.39/534,633.18 = 90,181.86/x
  3. Step 3: Cross multiply
    356,421.39x = 534,633.18 × 90,181.86
  4. Step 4: Simplify right side
    356,421.39x = 48,214,213,007.97
  5. Step 5: Solve for x
    x = 48,214,213,007.97/356,421.39
  6. Step 6: Final answer
    x = 135,273.06

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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.