Home / 130,993.92-196,514.64-74,897.28

Finding the Fourth Proportional to 130,993.92, 196,514.64 and 74,897.28

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Solution

The fourth proportional to 130,993.92, 196,514.64 and 74,897.28 is: 112,359.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,993.92 : 196,514.64 = 74,897.28 : x
  2. Step 2: Convert to fraction form
    130,993.92/196,514.64 = 74,897.28/x
  3. Step 3: Cross multiply
    130,993.92x = 196,514.64 × 74,897.28
  4. Step 4: Simplify right side
    130,993.92x = 14,718,412,016.18
  5. Step 5: Solve for x
    x = 14,718,412,016.18/130,993.92
  6. Step 6: Final answer
    x = 112,359.51

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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.