Home / 112,381.20-168,766.20-73,112.40

Finding the Fourth Proportional to 112,381.20, 168,766.20 and 73,112.40

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Solution

The fourth proportional to 112,381.20, 168,766.20 and 73,112.40 is: 109,795.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,381.20 : 168,766.20 = 73,112.40 : x
  2. Step 2: Convert to fraction form
    112,381.20/168,766.20 = 73,112.40/x
  3. Step 3: Cross multiply
    112,381.20x = 168,766.20 × 73,112.40
  4. Step 4: Simplify right side
    112,381.20x = 12,338,901,920.88
  5. Step 5: Solve for x
    x = 12,338,901,920.88/112,381.20
  6. Step 6: Final answer
    x = 109,795.07

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1.5x scale

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.