Home / 112,022.96-168,057.48-76,979.12

Finding the Fourth Proportional to 112,022.96, 168,057.48 and 76,979.12

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Solution

The fourth proportional to 112,022.96, 168,057.48 and 76,979.12 is: 115,484.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,022.96 : 168,057.48 = 76,979.12 : x
  2. Step 2: Convert to fraction form
    112,022.96/168,057.48 = 76,979.12/x
  3. Step 3: Cross multiply
    112,022.96x = 168,057.48 × 76,979.12
  4. Step 4: Simplify right side
    112,022.96x = 12,936,916,919.82
  5. Step 5: Solve for x
    x = 12,936,916,919.82/112,022.96
  6. Step 6: Final answer
    x = 115,484.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.