Home / 214,421.80-321,632.70-74,165.80

Finding the Fourth Proportional to 214,421.80, 321,632.70 and 74,165.80

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Solution

The fourth proportional to 214,421.80, 321,632.70 and 74,165.80 is: 111,248.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,421.80 : 321,632.70 = 74,165.80 : x
  2. Step 2: Convert to fraction form
    214,421.80/321,632.70 = 74,165.80/x
  3. Step 3: Cross multiply
    214,421.80x = 321,632.70 × 74,165.80
  4. Step 4: Simplify right side
    214,421.80x = 23,854,146,501.66
  5. Step 5: Solve for x
    x = 23,854,146,501.66/214,421.80
  6. Step 6: Final answer
    x = 111,248.70

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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.