Home / 213,899.98-321,165.36-119,314.96

Finding the Fourth Proportional to 213,899.98, 321,165.36 and 119,314.96

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Solution

The fourth proportional to 213,899.98, 321,165.36 and 119,314.96 is: 179,148.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,899.98 : 321,165.36 = 119,314.96 : x
  2. Step 2: Convert to fraction form
    213,899.98/321,165.36 = 119,314.96/x
  3. Step 3: Cross multiply
    213,899.98x = 321,165.36 × 119,314.96
  4. Step 4: Simplify right side
    213,899.98x = 38,319,832,081.79
  5. Step 5: Solve for x
    x = 38,319,832,081.79/213,899.98
  6. Step 6: Final answer
    x = 179,148.37

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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.