Home / 129,117.60-193,676.40-108,450.45

Finding the Fourth Proportional to 129,117.60, 193,676.40 and 108,450.45

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Solution

The fourth proportional to 129,117.60, 193,676.40 and 108,450.45 is: 162,675.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,117.60 : 193,676.40 = 108,450.45 : x
  2. Step 2: Convert to fraction form
    129,117.60/193,676.40 = 108,450.45/x
  3. Step 3: Cross multiply
    129,117.60x = 193,676.40 × 108,450.45
  4. Step 4: Simplify right side
    129,117.60x = 21,004,292,734.38
  5. Step 5: Solve for x
    x = 21,004,292,734.38/129,117.60
  6. Step 6: Final answer
    x = 162,675.68

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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.