Home / 117,668.19-162,405.72-69,912.35

Finding the Fourth Proportional to 117,668.19, 162,405.72 and 69,912.35

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Solution

The fourth proportional to 117,668.19, 162,405.72 and 69,912.35 is: 96,493.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,668.19 : 162,405.72 = 69,912.35 : x
  2. Step 2: Convert to fraction form
    117,668.19/162,405.72 = 69,912.35/x
  3. Step 3: Cross multiply
    117,668.19x = 162,405.72 × 69,912.35
  4. Step 4: Simplify right side
    117,668.19x = 11,354,164,726.61
  5. Step 5: Solve for x
    x = 11,354,164,726.61/117,668.19
  6. Step 6: Final answer
    x = 96,493.07

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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.