Home / 114,970.43-158,523.48-78,689.37

Finding the Fourth Proportional to 114,970.43, 158,523.48 and 78,689.37

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Solution

The fourth proportional to 114,970.43, 158,523.48 and 78,689.37 is: 108,498.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,970.43 : 158,523.48 = 78,689.37 : x
  2. Step 2: Convert to fraction form
    114,970.43/158,523.48 = 78,689.37/x
  3. Step 3: Cross multiply
    114,970.43x = 158,523.48 × 78,689.37
  4. Step 4: Simplify right side
    114,970.43x = 12,474,112,771.41
  5. Step 5: Solve for x
    x = 12,474,112,771.41/114,970.43
  6. Step 6: Final answer
    x = 108,498.44

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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.