Home / 214,189.29-321,281.55-87,801.30

Finding the Fourth Proportional to 214,189.29, 321,281.55 and 87,801.30

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Solution

The fourth proportional to 214,189.29, 321,281.55 and 87,801.30 is: 131,700.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,189.29 : 321,281.55 = 87,801.30 : x
  2. Step 2: Convert to fraction form
    214,189.29/321,281.55 = 87,801.30/x
  3. Step 3: Cross multiply
    214,189.29x = 321,281.55 × 87,801.30
  4. Step 4: Simplify right side
    214,189.29x = 28,208,937,756.02
  5. Step 5: Solve for x
    x = 28,208,937,756.02/214,189.29
  6. Step 6: Final answer
    x = 131,700.97

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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.