Home / 214,419.96-321,586.20-81,254.34

Finding the Fourth Proportional to 214,419.96, 321,586.20 and 81,254.34

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Solution

The fourth proportional to 214,419.96, 321,586.20 and 81,254.34 is: 121,864.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,419.96 : 321,586.20 = 81,254.34 : x
  2. Step 2: Convert to fraction form
    214,419.96/321,586.20 = 81,254.34/x
  3. Step 3: Cross multiply
    214,419.96x = 321,586.20 × 81,254.34
  4. Step 4: Simplify right side
    214,419.96x = 26,130,274,434.11
  5. Step 5: Solve for x
    x = 26,130,274,434.11/214,419.96
  6. Step 6: Final answer
    x = 121,864.93

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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.