Home / 213,899.18-321,164.18-119,314.16

Finding the Fourth Proportional to 213,899.18, 321,164.18 and 119,314.16

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Solution

The fourth proportional to 213,899.18, 321,164.18 and 119,314.16 is: 179,147.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,899.18 : 321,164.18 = 119,314.16 : x
  2. Step 2: Convert to fraction form
    213,899.18/321,164.18 = 119,314.16/x
  3. Step 3: Cross multiply
    213,899.18x = 321,164.18 × 119,314.16
  4. Step 4: Simplify right side
    213,899.18x = 38,319,434,358.79
  5. Step 5: Solve for x
    x = 38,319,434,358.79/213,899.18
  6. Step 6: Final answer
    x = 179,147.18

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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.