Home / 116,767.86-161,109.99-71,429.28

Finding the Fourth Proportional to 116,767.86, 161,109.99 and 71,429.28

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Solution

The fourth proportional to 116,767.86, 161,109.99 and 71,429.28 is: 98,554.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,767.86 : 161,109.99 = 71,429.28 : x
  2. Step 2: Convert to fraction form
    116,767.86/161,109.99 = 71,429.28/x
  3. Step 3: Cross multiply
    116,767.86x = 161,109.99 × 71,429.28
  4. Step 4: Simplify right side
    116,767.86x = 11,507,970,586.51
  5. Step 5: Solve for x
    x = 11,507,970,586.51/116,767.86
  6. Step 6: Final answer
    x = 98,554.26

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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.