Home / 136,635.47-188,573.40-80,046.84

Finding the Fourth Proportional to 136,635.47, 188,573.40 and 80,046.84

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Solution

The fourth proportional to 136,635.47, 188,573.40 and 80,046.84 is: 110,474.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,635.47 : 188,573.40 = 80,046.84 : x
  2. Step 2: Convert to fraction form
    136,635.47/188,573.40 = 80,046.84/x
  3. Step 3: Cross multiply
    136,635.47x = 188,573.40 × 80,046.84
  4. Step 4: Simplify right side
    136,635.47x = 15,094,705,485.21
  5. Step 5: Solve for x
    x = 15,094,705,485.21/136,635.47
  6. Step 6: Final answer
    x = 110,474.28

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1.5x scale

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.