Home / 129,416.69-194,171.75-45,189.27

Finding the Fourth Proportional to 129,416.69, 194,171.75 and 45,189.27

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Solution

The fourth proportional to 129,416.69, 194,171.75 and 45,189.27 is: 67,800.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,416.69 : 194,171.75 = 45,189.27 : x
  2. Step 2: Convert to fraction form
    129,416.69/194,171.75 = 45,189.27/x
  3. Step 3: Cross multiply
    129,416.69x = 194,171.75 × 45,189.27
  4. Step 4: Simplify right side
    129,416.69x = 8,774,479,411.18
  5. Step 5: Solve for x
    x = 8,774,479,411.18/129,416.69
  6. Step 6: Final answer
    x = 67,800.22

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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.