Home / 113,980.43-157,273.72-68,647.57

Finding the Fourth Proportional to 113,980.43, 157,273.72 and 68,647.57

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Solution

The fourth proportional to 113,980.43, 157,273.72 and 68,647.57 is: 94,722.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,980.43 : 157,273.72 = 68,647.57 : x
  2. Step 2: Convert to fraction form
    113,980.43/157,273.72 = 68,647.57/x
  3. Step 3: Cross multiply
    113,980.43x = 157,273.72 × 68,647.57
  4. Step 4: Simplify right side
    113,980.43x = 10,796,458,138.06
  5. Step 5: Solve for x
    x = 10,796,458,138.06/113,980.43
  6. Step 6: Final answer
    x = 94,722.03

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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.