Home / 125,916.68-188,918.78-55,845.32

Finding the Fourth Proportional to 125,916.68, 188,918.78 and 55,845.32

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Solution

The fourth proportional to 125,916.68, 188,918.78 and 55,845.32 is: 83,787.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,916.68 : 188,918.78 = 55,845.32 : x
  2. Step 2: Convert to fraction form
    125,916.68/188,918.78 = 55,845.32/x
  3. Step 3: Cross multiply
    125,916.68x = 188,918.78 × 55,845.32
  4. Step 4: Simplify right side
    125,916.68x = 10,550,229,723.11
  5. Step 5: Solve for x
    x = 10,550,229,723.11/125,916.68
  6. Step 6: Final answer
    x = 83,787.39

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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.