Home / 112,324,742.70-168,151,190.85-66,863,136.30

Finding the Fourth Proportional to 112,324,742.70, 168,151,190.85 and 66,863,136.30

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Solution

The fourth proportional to 112,324,742.70, 168,151,190.85 and 66,863,136.30 is: 100,094,740.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,324,742.70 : 168,151,190.85 = 66,863,136.30 : x
  2. Step 2: Convert to fraction form
    112,324,742.70/168,151,190.85 = 66,863,136.30/x
  3. Step 3: Cross multiply
    112,324,742.70x = 168,151,190.85 × 66,863,136.30
  4. Step 4: Simplify right side
    112,324,742.70x = 11,243,115,992,810,862
  5. Step 5: Solve for x
    x = 11,243,115,992,810,862/112,324,742.70
  6. Step 6: Final answer
    x = 100,094,740.68

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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.