Home / 121,719.76-182,573.44-42,834.64

Finding the Fourth Proportional to 121,719.76, 182,573.44 and 42,834.64

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Solution

The fourth proportional to 121,719.76, 182,573.44 and 42,834.64 is: 64,249.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,719.76 : 182,573.44 = 42,834.64 : x
  2. Step 2: Convert to fraction form
    121,719.76/182,573.44 = 42,834.64/x
  3. Step 3: Cross multiply
    121,719.76x = 182,573.44 × 42,834.64
  4. Step 4: Simplify right side
    121,719.76x = 7,820,467,575.96
  5. Step 5: Solve for x
    x = 7,820,467,575.96/121,719.76
  6. Step 6: Final answer
    x = 64,249.78

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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.