Home / 123,755.18-170,782.04-67,166.60

Finding the Fourth Proportional to 123,755.18, 170,782.04 and 67,166.60

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Solution

The fourth proportional to 123,755.18, 170,782.04 and 67,166.60 is: 92,689.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,755.18 : 170,782.04 = 67,166.60 : x
  2. Step 2: Convert to fraction form
    123,755.18/170,782.04 = 67,166.60/x
  3. Step 3: Cross multiply
    123,755.18x = 170,782.04 × 67,166.60
  4. Step 4: Simplify right side
    123,755.18x = 11,470,848,967.86
  5. Step 5: Solve for x
    x = 11,470,848,967.86/123,755.18
  6. Step 6: Final answer
    x = 92,689.85

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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.