Home / 125,916.14-188,939.82-55,779.05

Finding the Fourth Proportional to 125,916.14, 188,939.82 and 55,779.05

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Solution

The fourth proportional to 125,916.14, 188,939.82 and 55,779.05 is: 83,697.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,916.14 : 188,939.82 = 55,779.05 : x
  2. Step 2: Convert to fraction form
    125,916.14/188,939.82 = 55,779.05/x
  3. Step 3: Cross multiply
    125,916.14x = 188,939.82 × 55,779.05
  4. Step 4: Simplify right side
    125,916.14x = 10,538,884,348.29
  5. Step 5: Solve for x
    x = 10,538,884,348.29/125,916.14
  6. Step 6: Final answer
    x = 83,697.64

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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.