Home / 214,467.10-321,815.85-89,820.70

Finding the Fourth Proportional to 214,467.10, 321,815.85 and 89,820.70

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Solution

The fourth proportional to 214,467.10, 321,815.85 and 89,820.70 is: 134,779.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,467.10 : 321,815.85 = 89,820.70 : x
  2. Step 2: Convert to fraction form
    214,467.10/321,815.85 = 89,820.70/x
  3. Step 3: Cross multiply
    214,467.10x = 321,815.85 × 89,820.70
  4. Step 4: Simplify right side
    214,467.10x = 28,905,724,918.10
  5. Step 5: Solve for x
    x = 28,905,724,918.10/214,467.10
  6. Step 6: Final answer
    x = 134,779.30

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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.