Home / 156,939.70-235,405.89-38,612.08

Finding the Fourth Proportional to 156,939.70, 235,405.89 and 38,612.08

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Solution

The fourth proportional to 156,939.70, 235,405.89 and 38,612.08 is: 57,917.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,939.70 : 235,405.89 = 38,612.08 : x
  2. Step 2: Convert to fraction form
    156,939.70/235,405.89 = 38,612.08/x
  3. Step 3: Cross multiply
    156,939.70x = 235,405.89 × 38,612.08
  4. Step 4: Simplify right side
    156,939.70x = 9,089,511,057.15
  5. Step 5: Solve for x
    x = 9,089,511,057.15/156,939.70
  6. Step 6: Final answer
    x = 57,917.22

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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.