Home / 99,231.20-148,856.40-29,111.20

Finding the Fourth Proportional to 99,231.20, 148,856.40 and 29,111.20

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Solution

The fourth proportional to 99,231.20, 148,856.40 and 29,111.20 is: 43,669.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,231.20 : 148,856.40 = 29,111.20 : x
  2. Step 2: Convert to fraction form
    99,231.20/148,856.40 = 29,111.20/x
  3. Step 3: Cross multiply
    99,231.20x = 148,856.40 × 29,111.20
  4. Step 4: Simplify right side
    99,231.20x = 4,333,388,431.68
  5. Step 5: Solve for x
    x = 4,333,388,431.68/99,231.20
  6. Step 6: Final answer
    x = 43,669.62

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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.