Home / 151,146.30-227,128.65-81,075.90

Finding the Fourth Proportional to 151,146.30, 227,128.65 and 81,075.90

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Solution

The fourth proportional to 151,146.30, 227,128.65 and 81,075.90 is: 121,833.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,146.30 : 227,128.65 = 81,075.90 : x
  2. Step 2: Convert to fraction form
    151,146.30/227,128.65 = 81,075.90/x
  3. Step 3: Cross multiply
    151,146.30x = 227,128.65 × 81,075.90
  4. Step 4: Simplify right side
    151,146.30x = 18,414,659,714.54
  5. Step 5: Solve for x
    x = 18,414,659,714.54/151,146.30
  6. Step 6: Final answer
    x = 121,833.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.