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Finding the Fourth Proportional to 136,803.51, 188,735.22 and 79,433.04

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Solution

The fourth proportional to 136,803.51, 188,735.22 and 79,433.04 is: 109,586.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,803.51 : 188,735.22 = 79,433.04 : x
  2. Step 2: Convert to fraction form
    136,803.51/188,735.22 = 79,433.04/x
  3. Step 3: Cross multiply
    136,803.51x = 188,735.22 × 79,433.04
  4. Step 4: Simplify right side
    136,803.51x = 14,991,812,279.67
  5. Step 5: Solve for x
    x = 14,991,812,279.67/136,803.51
  6. Step 6: Final answer
    x = 109,586.46

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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.