Home / 104,829.20-157,243.80-69,837.20

Finding the Fourth Proportional to 104,829.20, 157,243.80 and 69,837.20

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Solution

The fourth proportional to 104,829.20, 157,243.80 and 69,837.20 is: 104,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,829.20 : 157,243.80 = 69,837.20 : x
  2. Step 2: Convert to fraction form
    104,829.20/157,243.80 = 69,837.20/x
  3. Step 3: Cross multiply
    104,829.20x = 157,243.80 × 69,837.20
  4. Step 4: Simplify right side
    104,829.20x = 10,981,466,709.36
  5. Step 5: Solve for x
    x = 10,981,466,709.36/104,829.20
  6. Step 6: Final answer
    x = 104,755.80

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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.