Home / 214,147.68-321,096.98-81,038.20

Finding the Fourth Proportional to 214,147.68, 321,096.98 and 81,038.20

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Solution

The fourth proportional to 214,147.68, 321,096.98 and 81,038.20 is: 121,510.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,147.68 : 321,096.98 = 81,038.20 : x
  2. Step 2: Convert to fraction form
    214,147.68/321,096.98 = 81,038.20/x
  3. Step 3: Cross multiply
    214,147.68x = 321,096.98 × 81,038.20
  4. Step 4: Simplify right side
    214,147.68x = 26,021,121,284.64
  5. Step 5: Solve for x
    x = 26,021,121,284.64/214,147.68
  6. Step 6: Final answer
    x = 121,510.17

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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.