Home / 220,078.60-303,709.38-124,603.72

Finding the Fourth Proportional to 220,078.60, 303,709.38 and 124,603.72

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Solution

The fourth proportional to 220,078.60, 303,709.38 and 124,603.72 is: 171,953.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,078.60 : 303,709.38 = 124,603.72 : x
  2. Step 2: Convert to fraction form
    220,078.60/303,709.38 = 124,603.72/x
  3. Step 3: Cross multiply
    220,078.60x = 303,709.38 × 124,603.72
  4. Step 4: Simplify right side
    220,078.60x = 37,843,318,546.89
  5. Step 5: Solve for x
    x = 37,843,318,546.89/220,078.60
  6. Step 6: Final answer
    x = 171,953.65

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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.