Home / 112,474.20-168,905.70-73,205.40

Finding the Fourth Proportional to 112,474.20, 168,905.70 and 73,205.40

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Solution

The fourth proportional to 112,474.20, 168,905.70 and 73,205.40 is: 109,934.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,474.20 : 168,905.70 = 73,205.40 : x
  2. Step 2: Convert to fraction form
    112,474.20/168,905.70 = 73,205.40/x
  3. Step 3: Cross multiply
    112,474.20x = 168,905.70 × 73,205.40
  4. Step 4: Simplify right side
    112,474.20x = 12,364,809,330.78
  5. Step 5: Solve for x
    x = 12,364,809,330.78/112,474.20
  6. Step 6: Final answer
    x = 109,934.63

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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.