Home / 214,020.40-321,030.60-109,044.40

Finding the Fourth Proportional to 214,020.40, 321,030.60 and 109,044.40

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Solution

The fourth proportional to 214,020.40, 321,030.60 and 109,044.40 is: 163,566.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,020.40 : 321,030.60 = 109,044.40 : x
  2. Step 2: Convert to fraction form
    214,020.40/321,030.60 = 109,044.40/x
  3. Step 3: Cross multiply
    214,020.40x = 321,030.60 × 109,044.40
  4. Step 4: Simplify right side
    214,020.40x = 35,006,589,158.64
  5. Step 5: Solve for x
    x = 35,006,589,158.64/214,020.40
  6. Step 6: Final answer
    x = 163,566.60

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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.