Home / 112,776.06-168,696.57-85,918.83

Finding the Fourth Proportional to 112,776.06, 168,696.57 and 85,918.83

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Solution

The fourth proportional to 112,776.06, 168,696.57 and 85,918.83 is: 128,522.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,776.06 : 168,696.57 = 85,918.83 : x
  2. Step 2: Convert to fraction form
    112,776.06/168,696.57 = 85,918.83/x
  3. Step 3: Cross multiply
    112,776.06x = 168,696.57 × 85,918.83
  4. Step 4: Simplify right side
    112,776.06x = 14,494,211,919.41
  5. Step 5: Solve for x
    x = 14,494,211,919.41/112,776.06
  6. Step 6: Final answer
    x = 128,522.06

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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.