Home / 156,757.86-235,076.62-66,743.51

Finding the Fourth Proportional to 156,757.86, 235,076.62 and 66,743.51

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Solution

The fourth proportional to 156,757.86, 235,076.62 and 66,743.51 is: 100,089.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,757.86 : 235,076.62 = 66,743.51 : x
  2. Step 2: Convert to fraction form
    156,757.86/235,076.62 = 66,743.51/x
  3. Step 3: Cross multiply
    156,757.86x = 235,076.62 × 66,743.51
  4. Step 4: Simplify right side
    156,757.86x = 15,689,837,562.35
  5. Step 5: Solve for x
    x = 15,689,837,562.35/156,757.86
  6. Step 6: Final answer
    x = 100,089.64

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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.