Home / 156,739.59-235,077.93-76,743.07

Finding the Fourth Proportional to 156,739.59, 235,077.93 and 76,743.07

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Solution

The fourth proportional to 156,739.59, 235,077.93 and 76,743.07 is: 115,099.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,739.59 : 235,077.93 = 76,743.07 : x
  2. Step 2: Convert to fraction form
    156,739.59/235,077.93 = 76,743.07/x
  3. Step 3: Cross multiply
    156,739.59x = 235,077.93 × 76,743.07
  4. Step 4: Simplify right side
    156,739.59x = 18,040,601,449.75
  5. Step 5: Solve for x
    x = 18,040,601,449.75/156,739.59
  6. Step 6: Final answer
    x = 115,099.20

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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.