Home / 106,270.38-159,380.10-31,370.22

Finding the Fourth Proportional to 106,270.38, 159,380.10 and 31,370.22

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Solution

The fourth proportional to 106,270.38, 159,380.10 and 31,370.22 is: 47,047.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,270.38 : 159,380.10 = 31,370.22 : x
  2. Step 2: Convert to fraction form
    106,270.38/159,380.10 = 31,370.22/x
  3. Step 3: Cross multiply
    106,270.38x = 159,380.10 × 31,370.22
  4. Step 4: Simplify right side
    106,270.38x = 4,999,788,800.62
  5. Step 5: Solve for x
    x = 4,999,788,800.62/106,270.38
  6. Step 6: Final answer
    x = 47,047.81

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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.