Home / 112,371.20-168,751.20-73,102.40

Finding the Fourth Proportional to 112,371.20, 168,751.20 and 73,102.40

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Solution

The fourth proportional to 112,371.20, 168,751.20 and 73,102.40 is: 109,780.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,371.20 : 168,751.20 = 73,102.40 : x
  2. Step 2: Convert to fraction form
    112,371.20/168,751.20 = 73,102.40/x
  3. Step 3: Cross multiply
    112,371.20x = 168,751.20 × 73,102.40
  4. Step 4: Simplify right side
    112,371.20x = 12,336,117,722.88
  5. Step 5: Solve for x
    x = 12,336,117,722.88/112,371.20
  6. Step 6: Final answer
    x = 109,780.07

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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.