Home / 143,894.35-215,718.46-55,211.50

Finding the Fourth Proportional to 143,894.35, 215,718.46 and 55,211.50

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Solution

The fourth proportional to 143,894.35, 215,718.46 and 55,211.50 is: 82,770.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,894.35 : 215,718.46 = 55,211.50 : x
  2. Step 2: Convert to fraction form
    143,894.35/215,718.46 = 55,211.50/x
  3. Step 3: Cross multiply
    143,894.35x = 215,718.46 × 55,211.50
  4. Step 4: Simplify right side
    143,894.35x = 11,910,139,478.23
  5. Step 5: Solve for x
    x = 11,910,139,478.23/143,894.35
  6. Step 6: Final answer
    x = 82,770.03

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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.