Home / 119,180.43-164,541.24-78,928.70

Finding the Fourth Proportional to 119,180.43, 164,541.24 and 78,928.70

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Solution

The fourth proportional to 119,180.43, 164,541.24 and 78,928.70 is: 108,969.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,180.43 : 164,541.24 = 78,928.70 : x
  2. Step 2: Convert to fraction form
    119,180.43/164,541.24 = 78,928.70/x
  3. Step 3: Cross multiply
    119,180.43x = 164,541.24 × 78,928.70
  4. Step 4: Simplify right side
    119,180.43x = 12,987,025,346.88
  5. Step 5: Solve for x
    x = 12,987,025,346.88/119,180.43
  6. Step 6: Final answer
    x = 108,969.45

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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.