Home / 131,676.96-197,465.76-42,909.60

Finding the Fourth Proportional to 131,676.96, 197,465.76 and 42,909.60

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Solution

The fourth proportional to 131,676.96, 197,465.76 and 42,909.60 is: 64,348.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,676.96 : 197,465.76 = 42,909.60 : x
  2. Step 2: Convert to fraction form
    131,676.96/197,465.76 = 42,909.60/x
  3. Step 3: Cross multiply
    131,676.96x = 197,465.76 × 42,909.60
  4. Step 4: Simplify right side
    131,676.96x = 8,473,176,775.30
  5. Step 5: Solve for x
    x = 8,473,176,775.30/131,676.96
  6. Step 6: Final answer
    x = 64,348.21

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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.