Home / 129,555.63-194,333.45-74,112.75

Finding the Fourth Proportional to 129,555.63, 194,333.45 and 74,112.75

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Solution

The fourth proportional to 129,555.63, 194,333.45 and 74,112.75 is: 111,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,555.63 : 194,333.45 = 74,112.75 : x
  2. Step 2: Convert to fraction form
    129,555.63/194,333.45 = 74,112.75/x
  3. Step 3: Cross multiply
    129,555.63x = 194,333.45 × 74,112.75
  4. Step 4: Simplify right side
    129,555.63x = 14,402,586,025.92
  5. Step 5: Solve for x
    x = 14,402,586,025.92/129,555.63
  6. Step 6: Final answer
    x = 111,169.13

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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.