Home / 129,029.40-193,544.10-75,666.60

Finding the Fourth Proportional to 129,029.40, 193,544.10 and 75,666.60

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Solution

The fourth proportional to 129,029.40, 193,544.10 and 75,666.60 is: 113,499.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,029.40 : 193,544.10 = 75,666.60 : x
  2. Step 2: Convert to fraction form
    129,029.40/193,544.10 = 75,666.60/x
  3. Step 3: Cross multiply
    129,029.40x = 193,544.10 × 75,666.60
  4. Step 4: Simplify right side
    129,029.40x = 14,644,823,997.06
  5. Step 5: Solve for x
    x = 14,644,823,997.06/129,029.40
  6. Step 6: Final answer
    x = 113,499.90

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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.