Home / 116,971.22-161,420.67-63,256.61

Finding the Fourth Proportional to 116,971.22, 161,420.67 and 63,256.61

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Solution

The fourth proportional to 116,971.22, 161,420.67 and 63,256.61 is: 87,294.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,971.22 : 161,420.67 = 63,256.61 : x
  2. Step 2: Convert to fraction form
    116,971.22/161,420.67 = 63,256.61/x
  3. Step 3: Cross multiply
    116,971.22x = 161,420.67 × 63,256.61
  4. Step 4: Simplify right side
    116,971.22x = 10,210,924,771.68
  5. Step 5: Solve for x
    x = 10,210,924,771.68/116,971.22
  6. Step 6: Final answer
    x = 87,294.33

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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.