Home / 123,699.13-170,704.86-67,110.50

Finding the Fourth Proportional to 123,699.13, 170,704.86 and 67,110.50

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Solution

The fourth proportional to 123,699.13, 170,704.86 and 67,110.50 is: 92,612.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,699.13 : 170,704.86 = 67,110.50 : x
  2. Step 2: Convert to fraction form
    123,699.13/170,704.86 = 67,110.50/x
  3. Step 3: Cross multiply
    123,699.13x = 170,704.86 × 67,110.50
  4. Step 4: Simplify right side
    123,699.13x = 11,456,088,507.03
  5. Step 5: Solve for x
    x = 11,456,088,507.03/123,699.13
  6. Step 6: Final answer
    x = 92,612.52

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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.