Home / 125,029.83-172,539.77-67,667.86

Finding the Fourth Proportional to 125,029.83, 172,539.77 and 67,667.86

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Solution

The fourth proportional to 125,029.83, 172,539.77 and 67,667.86 is: 93,380.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,029.83 : 172,539.77 = 67,667.86 : x
  2. Step 2: Convert to fraction form
    125,029.83/172,539.77 = 67,667.86/x
  3. Step 3: Cross multiply
    125,029.83x = 172,539.77 × 67,667.86
  4. Step 4: Simplify right side
    125,029.83x = 11,675,396,288.22
  5. Step 5: Solve for x
    x = 11,675,396,288.22/125,029.83
  6. Step 6: Final answer
    x = 93,380.89

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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.