Home / 121,415.15-182,078.99-51,299.93

Finding the Fourth Proportional to 121,415.15, 182,078.99 and 51,299.93

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Solution

The fourth proportional to 121,415.15, 182,078.99 and 51,299.93 is: 76,931.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,415.15 : 182,078.99 = 51,299.93 : x
  2. Step 2: Convert to fraction form
    121,415.15/182,078.99 = 51,299.93/x
  3. Step 3: Cross multiply
    121,415.15x = 182,078.99 × 51,299.93
  4. Step 4: Simplify right side
    121,415.15x = 9,340,639,832.54
  5. Step 5: Solve for x
    x = 9,340,639,832.54/121,415.15
  6. Step 6: Final answer
    x = 76,931.42

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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.