Home / 151,916.85-209,657.50-83,939.76

Finding the Fourth Proportional to 151,916.85, 209,657.50 and 83,939.76

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Solution

The fourth proportional to 151,916.85, 209,657.50 and 83,939.76 is: 115,843.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,916.85 : 209,657.50 = 83,939.76 : x
  2. Step 2: Convert to fraction form
    151,916.85/209,657.50 = 83,939.76/x
  3. Step 3: Cross multiply
    151,916.85x = 209,657.50 × 83,939.76
  4. Step 4: Simplify right side
    151,916.85x = 17,598,600,022.35
  5. Step 5: Solve for x
    x = 17,598,600,022.35/151,916.85
  6. Step 6: Final answer
    x = 115,843.63

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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.