Home / 214,146.68-321,095.48-81,037.20

Finding the Fourth Proportional to 214,146.68, 321,095.48 and 81,037.20

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Solution

The fourth proportional to 214,146.68, 321,095.48 and 81,037.20 is: 121,508.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,146.68 : 321,095.48 = 81,037.20 : x
  2. Step 2: Convert to fraction form
    214,146.68/321,095.48 = 81,037.20/x
  3. Step 3: Cross multiply
    214,146.68x = 321,095.48 × 81,037.20
  4. Step 4: Simplify right side
    214,146.68x = 26,020,678,631.86
  5. Step 5: Solve for x
    x = 26,020,678,631.86/214,146.68
  6. Step 6: Final answer
    x = 121,508.67

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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.