Home / 117,182.40-161,721.66-66,204.48

Finding the Fourth Proportional to 117,182.40, 161,721.66 and 66,204.48

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Solution

The fourth proportional to 117,182.40, 161,721.66 and 66,204.48 is: 91,367.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,182.40 : 161,721.66 = 66,204.48 : x
  2. Step 2: Convert to fraction form
    117,182.40/161,721.66 = 66,204.48/x
  3. Step 3: Cross multiply
    117,182.40x = 161,721.66 × 66,204.48
  4. Step 4: Simplify right side
    117,182.40x = 10,706,698,405.04
  5. Step 5: Solve for x
    x = 10,706,698,405.04/117,182.40
  6. Step 6: Final answer
    x = 91,367.80

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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.