Home / 112,109,408.83-168,083,405.64-68,889,317.05

Finding the Fourth Proportional to 112,109,408.83, 168,083,405.64 and 68,889,317.05

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Solution

The fourth proportional to 112,109,408.83, 168,083,405.64 and 68,889,317.05 is: 103,284,382.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,109,408.83 : 168,083,405.64 = 68,889,317.05 : x
  2. Step 2: Convert to fraction form
    112,109,408.83/168,083,405.64 = 68,889,317.05/x
  3. Step 3: Cross multiply
    112,109,408.83x = 168,083,405.64 × 68,889,317.05
  4. Step 4: Simplify right side
    112,109,408.83x = 11,579,151,021,977,716
  5. Step 5: Solve for x
    x = 11,579,151,021,977,716/112,109,408.83
  6. Step 6: Final answer
    x = 103,284,382.13

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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.