Home / 112,515.21-168,819.39-49,302.72

Finding the Fourth Proportional to 112,515.21, 168,819.39 and 49,302.72

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Solution

The fourth proportional to 112,515.21, 168,819.39 and 49,302.72 is: 73,974.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,515.21 : 168,819.39 = 49,302.72 : x
  2. Step 2: Convert to fraction form
    112,515.21/168,819.39 = 49,302.72/x
  3. Step 3: Cross multiply
    112,515.21x = 168,819.39 × 49,302.72
  4. Step 4: Simplify right side
    112,515.21x = 8,323,255,115.74
  5. Step 5: Solve for x
    x = 8,323,255,115.74/112,515.21
  6. Step 6: Final answer
    x = 73,974.49

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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.