Home / 128,406.60-192,595.32-49,514.22

Finding the Fourth Proportional to 128,406.60, 192,595.32 and 49,514.22

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Solution

The fourth proportional to 128,406.60, 192,595.32 and 49,514.22 is: 74,265.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,406.60 : 192,595.32 = 49,514.22 : x
  2. Step 2: Convert to fraction form
    128,406.60/192,595.32 = 49,514.22/x
  3. Step 3: Cross multiply
    128,406.60x = 192,595.32 × 49,514.22
  4. Step 4: Simplify right side
    128,406.60x = 9,536,207,045.45
  5. Step 5: Solve for x
    x = 9,536,207,045.45/128,406.60
  6. Step 6: Final answer
    x = 74,265.71

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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.