Home / 136,336.41-188,143.81-75,905.48

Finding the Fourth Proportional to 136,336.41, 188,143.81 and 75,905.48

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Solution

The fourth proportional to 136,336.41, 188,143.81 and 75,905.48 is: 104,749.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,336.41 : 188,143.81 = 75,905.48 : x
  2. Step 2: Convert to fraction form
    136,336.41/188,143.81 = 75,905.48/x
  3. Step 3: Cross multiply
    136,336.41x = 188,143.81 × 75,905.48
  4. Step 4: Simplify right side
    136,336.41x = 14,281,146,487.67
  5. Step 5: Solve for x
    x = 14,281,146,487.67/136,336.41
  6. Step 6: Final answer
    x = 104,749.32

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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.