Home / 105,285.54-157,916.70-26,399.78

Finding the Fourth Proportional to 105,285.54, 157,916.70 and 26,399.78

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Solution

The fourth proportional to 105,285.54, 157,916.70 and 26,399.78 is: 39,596.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,285.54 : 157,916.70 = 26,399.78 : x
  2. Step 2: Convert to fraction form
    105,285.54/157,916.70 = 26,399.78/x
  3. Step 3: Cross multiply
    105,285.54x = 157,916.70 × 26,399.78
  4. Step 4: Simplify right side
    105,285.54x = 4,168,966,138.33
  5. Step 5: Solve for x
    x = 4,168,966,138.33/105,285.54
  6. Step 6: Final answer
    x = 39,596.76

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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.