Home / 136,660.34-188,592.69-76,236.50

Finding the Fourth Proportional to 136,660.34, 188,592.69 and 76,236.50

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Solution

The fourth proportional to 136,660.34, 188,592.69 and 76,236.50 is: 105,207.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,660.34 : 188,592.69 = 76,236.50 : x
  2. Step 2: Convert to fraction form
    136,660.34/188,592.69 = 76,236.50/x
  3. Step 3: Cross multiply
    136,660.34x = 188,592.69 × 76,236.50
  4. Step 4: Simplify right side
    136,660.34x = 14,377,646,611.19
  5. Step 5: Solve for x
    x = 14,377,646,611.19/136,660.34
  6. Step 6: Final answer
    x = 105,207.16

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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.