Home / 135,445.14-186,916.91-81,053.24

Finding the Fourth Proportional to 135,445.14, 186,916.91 and 81,053.24

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Solution

The fourth proportional to 135,445.14, 186,916.91 and 81,053.24 is: 111,855.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,445.14 : 186,916.91 = 81,053.24 : x
  2. Step 2: Convert to fraction form
    135,445.14/186,916.91 = 81,053.24/x
  3. Step 3: Cross multiply
    135,445.14x = 186,916.91 × 81,053.24
  4. Step 4: Simplify right side
    135,445.14x = 15,150,219,826.44
  5. Step 5: Solve for x
    x = 15,150,219,826.44/135,445.14
  6. Step 6: Final answer
    x = 111,855.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.