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Finding the Fourth Proportional to 117,679.65, 162,401.09 and 63,968.30

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Solution

The fourth proportional to 117,679.65, 162,401.09 and 63,968.30 is: 88,277.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,679.65 : 162,401.09 = 63,968.30 : x
  2. Step 2: Convert to fraction form
    117,679.65/162,401.09 = 63,968.30/x
  3. Step 3: Cross multiply
    117,679.65x = 162,401.09 × 63,968.30
  4. Step 4: Simplify right side
    117,679.65x = 10,388,521,645.45
  5. Step 5: Solve for x
    x = 10,388,521,645.45/117,679.65
  6. Step 6: Final answer
    x = 88,277.98

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1.5x scale

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.