Home / 112,686.84-169,065.63-67,759.92

Finding the Fourth Proportional to 112,686.84, 169,065.63 and 67,759.92

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Solution

The fourth proportional to 112,686.84, 169,065.63 and 67,759.92 is: 101,661.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,686.84 : 169,065.63 = 67,759.92 : x
  2. Step 2: Convert to fraction form
    112,686.84/169,065.63 = 67,759.92/x
  3. Step 3: Cross multiply
    112,686.84x = 169,065.63 × 67,759.92
  4. Step 4: Simplify right side
    112,686.84x = 11,455,873,563.55
  5. Step 5: Solve for x
    x = 11,455,873,563.55/112,686.84
  6. Step 6: Final answer
    x = 101,661.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.