Home / 105,313.20-158,016.60-55,381.20

Finding the Fourth Proportional to 105,313.20, 158,016.60 and 55,381.20

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Solution

The fourth proportional to 105,313.20, 158,016.60 and 55,381.20 is: 83,096.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,313.20 : 158,016.60 = 55,381.20 : x
  2. Step 2: Convert to fraction form
    105,313.20/158,016.60 = 55,381.20/x
  3. Step 3: Cross multiply
    105,313.20x = 158,016.60 × 55,381.20
  4. Step 4: Simplify right side
    105,313.20x = 8,751,148,927.92
  5. Step 5: Solve for x
    x = 8,751,148,927.92/105,313.20
  6. Step 6: Final answer
    x = 83,096.41

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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.