Home / 115,756.71-159,775.44-68,042.04

Finding the Fourth Proportional to 115,756.71, 159,775.44 and 68,042.04

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Solution

The fourth proportional to 115,756.71, 159,775.44 and 68,042.04 is: 93,916.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,756.71 : 159,775.44 = 68,042.04 : x
  2. Step 2: Convert to fraction form
    115,756.71/159,775.44 = 68,042.04/x
  3. Step 3: Cross multiply
    115,756.71x = 159,775.44 × 68,042.04
  4. Step 4: Simplify right side
    115,756.71x = 10,871,446,879.50
  5. Step 5: Solve for x
    x = 10,871,446,879.50/115,756.71
  6. Step 6: Final answer
    x = 93,916.34

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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.