Home / 118,104.32-162,979.16-64,388.28

Finding the Fourth Proportional to 118,104.32, 162,979.16 and 64,388.28

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Solution

The fourth proportional to 118,104.32, 162,979.16 and 64,388.28 is: 88,853.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,104.32 : 162,979.16 = 64,388.28 : x
  2. Step 2: Convert to fraction form
    118,104.32/162,979.16 = 64,388.28/x
  3. Step 3: Cross multiply
    118,104.32x = 162,979.16 × 64,388.28
  4. Step 4: Simplify right side
    118,104.32x = 10,493,947,788.24
  5. Step 5: Solve for x
    x = 10,493,947,788.24/118,104.32
  6. Step 6: Final answer
    x = 88,853.21

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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.