Home / 121,436.46-182,216.67-81,910.68

Finding the Fourth Proportional to 121,436.46, 182,216.67 and 81,910.68

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Solution

The fourth proportional to 121,436.46, 182,216.67 and 81,910.68 is: 122,907.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,436.46 : 182,216.67 = 81,910.68 : x
  2. Step 2: Convert to fraction form
    121,436.46/182,216.67 = 81,910.68/x
  3. Step 3: Cross multiply
    121,436.46x = 182,216.67 × 81,910.68
  4. Step 4: Simplify right side
    121,436.46x = 14,925,491,347.04
  5. Step 5: Solve for x
    x = 14,925,491,347.04/121,436.46
  6. Step 6: Final answer
    x = 122,907.83

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1.5x scale

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.