Home / 118,819.92-163,975.30-65,108.36

Finding the Fourth Proportional to 118,819.92, 163,975.30 and 65,108.36

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Solution

The fourth proportional to 118,819.92, 163,975.30 and 65,108.36 is: 89,851.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,819.92 : 163,975.30 = 65,108.36 : x
  2. Step 2: Convert to fraction form
    118,819.92/163,975.30 = 65,108.36/x
  3. Step 3: Cross multiply
    118,819.92x = 163,975.30 × 65,108.36
  4. Step 4: Simplify right side
    118,819.92x = 10,676,162,863.51
  5. Step 5: Solve for x
    x = 10,676,162,863.51/118,819.92
  6. Step 6: Final answer
    x = 89,851.62

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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.