Home / 113,021.04-155,969.64-62,720.04

Finding the Fourth Proportional to 113,021.04, 155,969.64 and 62,720.04

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Solution

The fourth proportional to 113,021.04, 155,969.64 and 62,720.04 is: 86,553.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,021.04 : 155,969.64 = 62,720.04 : x
  2. Step 2: Convert to fraction form
    113,021.04/155,969.64 = 62,720.04/x
  3. Step 3: Cross multiply
    113,021.04x = 155,969.64 × 62,720.04
  4. Step 4: Simplify right side
    113,021.04x = 9,782,422,059.59
  5. Step 5: Solve for x
    x = 9,782,422,059.59/113,021.04
  6. Step 6: Final answer
    x = 86,553.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.