Home / 136,353.16-188,122.26-79,724.44

Finding the Fourth Proportional to 136,353.16, 188,122.26 and 79,724.44

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Solution

The fourth proportional to 136,353.16, 188,122.26 and 79,724.44 is: 109,993.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,353.16 : 188,122.26 = 79,724.44 : x
  2. Step 2: Convert to fraction form
    136,353.16/188,122.26 = 79,724.44/x
  3. Step 3: Cross multiply
    136,353.16x = 188,122.26 × 79,724.44
  4. Step 4: Simplify right side
    136,353.16x = 14,997,941,830.03
  5. Step 5: Solve for x
    x = 14,997,941,830.03/136,353.16
  6. Step 6: Final answer
    x = 109,993.36

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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.