Home / 136,419.39-188,258.65-79,092.00

Finding the Fourth Proportional to 136,419.39, 188,258.65 and 79,092.00

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Solution

The fourth proportional to 136,419.39, 188,258.65 and 79,092.00 is: 109,146.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,419.39 : 188,258.65 = 79,092.00 : x
  2. Step 2: Convert to fraction form
    136,419.39/188,258.65 = 79,092.00/x
  3. Step 3: Cross multiply
    136,419.39x = 188,258.65 × 79,092.00
  4. Step 4: Simplify right side
    136,419.39x = 14,889,753,622.65
  5. Step 5: Solve for x
    x = 14,889,753,622.65/136,419.39
  6. Step 6: Final answer
    x = 109,146.90

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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.