Home / 105,912.08-158,583.96-55,888.40

Finding the Fourth Proportional to 105,912.08, 158,583.96 and 55,888.40

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Solution

The fourth proportional to 105,912.08, 158,583.96 and 55,888.40 is: 83,682.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,912.08 : 158,583.96 = 55,888.40 : x
  2. Step 2: Convert to fraction form
    105,912.08/158,583.96 = 55,888.40/x
  3. Step 3: Cross multiply
    105,912.08x = 158,583.96 × 55,888.40
  4. Step 4: Simplify right side
    105,912.08x = 8,863,003,790.06
  5. Step 5: Solve for x
    x = 8,863,003,790.06/105,912.08
  6. Step 6: Final answer
    x = 83,682.65

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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.