Home / 99,020.96-148,536.48-28,905.56

Finding the Fourth Proportional to 99,020.96, 148,536.48 and 28,905.56

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Solution

The fourth proportional to 99,020.96, 148,536.48 and 28,905.56 is: 43,359.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,020.96 : 148,536.48 = 28,905.56 : x
  2. Step 2: Convert to fraction form
    99,020.96/148,536.48 = 28,905.56/x
  3. Step 3: Cross multiply
    99,020.96x = 148,536.48 × 28,905.56
  4. Step 4: Simplify right side
    99,020.96x = 4,293,530,134.83
  5. Step 5: Solve for x
    x = 4,293,530,134.83/99,020.96
  6. Step 6: Final answer
    x = 43,359.81

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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.