Home / 220,078.06-303,708.98-129,437.84

Finding the Fourth Proportional to 220,078.06, 303,708.98 and 129,437.84

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Solution

The fourth proportional to 220,078.06, 303,708.98 and 129,437.84 is: 178,624.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,078.06 : 303,708.98 = 129,437.84 : x
  2. Step 2: Convert to fraction form
    220,078.06/303,708.98 = 129,437.84/x
  3. Step 3: Cross multiply
    220,078.06x = 303,708.98 × 129,437.84
  4. Step 4: Simplify right side
    220,078.06x = 39,311,435,442.67
  5. Step 5: Solve for x
    x = 39,311,435,442.67/220,078.06
  6. Step 6: Final answer
    x = 178,624.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.