Home / 136,335.55-188,094.34-78,943.54

Finding the Fourth Proportional to 136,335.55, 188,094.34 and 78,943.54

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Solution

The fourth proportional to 136,335.55, 188,094.34 and 78,943.54 is: 108,913.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,335.55 : 188,094.34 = 78,943.54 : x
  2. Step 2: Convert to fraction form
    136,335.55/188,094.34 = 78,943.54/x
  3. Step 3: Cross multiply
    136,335.55x = 188,094.34 × 78,943.54
  4. Step 4: Simplify right side
    136,335.55x = 14,848,833,053.56
  5. Step 5: Solve for x
    x = 14,848,833,053.56/136,335.55
  6. Step 6: Final answer
    x = 108,913.88

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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.