Home / 161,890.20-242,576.10-106,421.40

Finding the Fourth Proportional to 161,890.20, 242,576.10 and 106,421.40

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Solution

The fourth proportional to 161,890.20, 242,576.10 and 106,421.40 is: 159,461.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,890.20 : 242,576.10 = 106,421.40 : x
  2. Step 2: Convert to fraction form
    161,890.20/242,576.10 = 106,421.40/x
  3. Step 3: Cross multiply
    161,890.20x = 242,576.10 × 106,421.40
  4. Step 4: Simplify right side
    161,890.20x = 25,815,288,168.54
  5. Step 5: Solve for x
    x = 25,815,288,168.54/161,890.20
  6. Step 6: Final answer
    x = 159,461.71

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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.