Home / 215,690.45-323,536.50-65,930.18

Finding the Fourth Proportional to 215,690.45, 323,536.50 and 65,930.18

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Solution

The fourth proportional to 215,690.45, 323,536.50 and 65,930.18 is: 98,895.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,690.45 : 323,536.50 = 65,930.18 : x
  2. Step 2: Convert to fraction form
    215,690.45/323,536.50 = 65,930.18/x
  3. Step 3: Cross multiply
    215,690.45x = 323,536.50 × 65,930.18
  4. Step 4: Simplify right side
    215,690.45x = 21,330,818,063.89
  5. Step 5: Solve for x
    x = 21,330,818,063.89/215,690.45
  6. Step 6: Final answer
    x = 98,895.52

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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.