Home / 136,271.34-188,053.11-75,840.96

Finding the Fourth Proportional to 136,271.34, 188,053.11 and 75,840.96

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Solution

The fourth proportional to 136,271.34, 188,053.11 and 75,840.96 is: 104,659.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,271.34 : 188,053.11 = 75,840.96 : x
  2. Step 2: Convert to fraction form
    136,271.34/188,053.11 = 75,840.96/x
  3. Step 3: Cross multiply
    136,271.34x = 188,053.11 × 75,840.96
  4. Step 4: Simplify right side
    136,271.34x = 14,262,128,393.39
  5. Step 5: Solve for x
    x = 14,262,128,393.39/136,271.34
  6. Step 6: Final answer
    x = 104,659.78

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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.