Home / 131,638.96-197,420.76-42,900.22

Finding the Fourth Proportional to 131,638.96, 197,420.76 and 42,900.22

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Solution

The fourth proportional to 131,638.96, 197,420.76 and 42,900.22 is: 64,338.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,638.96 : 197,420.76 = 42,900.22 : x
  2. Step 2: Convert to fraction form
    131,638.96/197,420.76 = 42,900.22/x
  3. Step 3: Cross multiply
    131,638.96x = 197,420.76 × 42,900.22
  4. Step 4: Simplify right side
    131,638.96x = 8,469,394,036.57
  5. Step 5: Solve for x
    x = 8,469,394,036.57/131,638.96
  6. Step 6: Final answer
    x = 64,338.05

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1.5x scale

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.