Home / 112,299.63-168,537.49-78,344.84

Finding the Fourth Proportional to 112,299.63, 168,537.49 and 78,344.84

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Solution

The fourth proportional to 112,299.63, 168,537.49 and 78,344.84 is: 117,578.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,299.63 : 168,537.49 = 78,344.84 : x
  2. Step 2: Convert to fraction form
    112,299.63/168,537.49 = 78,344.84/x
  3. Step 3: Cross multiply
    112,299.63x = 168,537.49 × 78,344.84
  4. Step 4: Simplify right side
    112,299.63x = 13,204,041,453.64
  5. Step 5: Solve for x
    x = 13,204,041,453.64/112,299.63
  6. Step 6: Final answer
    x = 117,578.67

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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.