Home / 105,471.40-158,115.26-43,102.12

Finding the Fourth Proportional to 105,471.40, 158,115.26 and 43,102.12

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Solution

The fourth proportional to 105,471.40, 158,115.26 and 43,102.12 is: 64,615.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,471.40 : 158,115.26 = 43,102.12 : x
  2. Step 2: Convert to fraction form
    105,471.40/158,115.26 = 43,102.12/x
  3. Step 3: Cross multiply
    105,471.40x = 158,115.26 × 43,102.12
  4. Step 4: Simplify right side
    105,471.40x = 6,815,102,910.35
  5. Step 5: Solve for x
    x = 6,815,102,910.35/105,471.40
  6. Step 6: Final answer
    x = 64,615.65

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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.