Home / 121,435.32-182,137.86-51,305.52

Finding the Fourth Proportional to 121,435.32, 182,137.86 and 51,305.52

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Solution

The fourth proportional to 121,435.32, 182,137.86 and 51,305.52 is: 76,951.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,435.32 : 182,137.86 = 51,305.52 : x
  2. Step 2: Convert to fraction form
    121,435.32/182,137.86 = 51,305.52/x
  3. Step 3: Cross multiply
    121,435.32x = 182,137.86 × 51,305.52
  4. Step 4: Simplify right side
    121,435.32x = 9,344,677,618.99
  5. Step 5: Solve for x
    x = 9,344,677,618.99/121,435.32
  6. Step 6: Final answer
    x = 76,951.89

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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.