Home / 121,530.50-182,376.78-46,712.42

Finding the Fourth Proportional to 121,530.50, 182,376.78 and 46,712.42

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Solution

The fourth proportional to 121,530.50, 182,376.78 and 46,712.42 is: 70,099.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,530.50 : 182,376.78 = 46,712.42 : x
  2. Step 2: Convert to fraction form
    121,530.50/182,376.78 = 46,712.42/x
  3. Step 3: Cross multiply
    121,530.50x = 182,376.78 × 46,712.42
  4. Step 4: Simplify right side
    121,530.50x = 8,519,260,745.61
  5. Step 5: Solve for x
    x = 8,519,260,745.61/121,530.50
  6. Step 6: Final answer
    x = 70,099.78

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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.