Home / 151,813.12-227,429.90-85,051.30

Finding the Fourth Proportional to 151,813.12, 227,429.90 and 85,051.30

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Solution

The fourth proportional to 151,813.12, 227,429.90 and 85,051.30 is: 127,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,813.12 : 227,429.90 = 85,051.30 : x
  2. Step 2: Convert to fraction form
    151,813.12/227,429.90 = 85,051.30/x
  3. Step 3: Cross multiply
    151,813.12x = 227,429.90 × 85,051.30
  4. Step 4: Simplify right side
    151,813.12x = 19,343,207,660.04
  5. Step 5: Solve for x
    x = 19,343,207,660.04/151,813.12
  6. Step 6: Final answer
    x = 127,414.60

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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.