Home / 120,052.27-180,078.54-31,305.70

Finding the Fourth Proportional to 120,052.27, 180,078.54 and 31,305.70

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Solution

The fourth proportional to 120,052.27, 180,078.54 and 31,305.70 is: 46,958.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,052.27 : 180,078.54 = 31,305.70 : x
  2. Step 2: Convert to fraction form
    120,052.27/180,078.54 = 31,305.70/x
  3. Step 3: Cross multiply
    120,052.27x = 180,078.54 × 31,305.70
  4. Step 4: Simplify right side
    120,052.27x = 5,637,484,749.68
  5. Step 5: Solve for x
    x = 5,637,484,749.68/120,052.27
  6. Step 6: Final answer
    x = 46,958.59

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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.