Home / 116,751.39-161,087.19-71,412.81

Finding the Fourth Proportional to 116,751.39, 161,087.19 and 71,412.81

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Solution

The fourth proportional to 116,751.39, 161,087.19 and 71,412.81 is: 98,531.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,751.39 : 161,087.19 = 71,412.81 : x
  2. Step 2: Convert to fraction form
    116,751.39/161,087.19 = 71,412.81/x
  3. Step 3: Cross multiply
    116,751.39x = 161,087.19 × 71,412.81
  4. Step 4: Simplify right side
    116,751.39x = 11,503,688,892.90
  5. Step 5: Solve for x
    x = 11,503,688,892.90/116,751.39
  6. Step 6: Final answer
    x = 98,531.49

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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.