Home / 129,305.78-193,958.90-40,566.28

Finding the Fourth Proportional to 129,305.78, 193,958.90 and 40,566.28

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Solution

The fourth proportional to 129,305.78, 193,958.90 and 40,566.28 is: 60,849.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,305.78 : 193,958.90 = 40,566.28 : x
  2. Step 2: Convert to fraction form
    129,305.78/193,958.90 = 40,566.28/x
  3. Step 3: Cross multiply
    129,305.78x = 193,958.90 × 40,566.28
  4. Step 4: Simplify right side
    129,305.78x = 7,868,191,045.89
  5. Step 5: Solve for x
    x = 7,868,191,045.89/129,305.78
  6. Step 6: Final answer
    x = 60,849.49

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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.