Home / 112,713.40-168,948.06-73,298.80

Finding the Fourth Proportional to 112,713.40, 168,948.06 and 73,298.80

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Solution

The fourth proportional to 112,713.40, 168,948.06 and 73,298.80 is: 109,868.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,713.40 : 168,948.06 = 73,298.80 : x
  2. Step 2: Convert to fraction form
    112,713.40/168,948.06 = 73,298.80/x
  3. Step 3: Cross multiply
    112,713.40x = 168,948.06 × 73,298.80
  4. Step 4: Simplify right side
    112,713.40x = 12,383,690,060.33
  5. Step 5: Solve for x
    x = 12,383,690,060.33/112,713.40
  6. Step 6: Final answer
    x = 109,868.84

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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.