Home / 112,072.76-168,109.26-64,759.88

Finding the Fourth Proportional to 112,072.76, 168,109.26 and 64,759.88

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Solution

The fourth proportional to 112,072.76, 168,109.26 and 64,759.88 is: 97,139.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,072.76 : 168,109.26 = 64,759.88 : x
  2. Step 2: Convert to fraction form
    112,072.76/168,109.26 = 64,759.88/x
  3. Step 3: Cross multiply
    112,072.76x = 168,109.26 × 64,759.88
  4. Step 4: Simplify right side
    112,072.76x = 10,886,735,504.49
  5. Step 5: Solve for x
    x = 10,886,735,504.49/112,072.76
  6. Step 6: Final answer
    x = 97,139.89

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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.