Home / 129,034.37-193,551.56-75,807.65

Finding the Fourth Proportional to 129,034.37, 193,551.56 and 75,807.65

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Solution

The fourth proportional to 129,034.37, 193,551.56 and 75,807.65 is: 113,711.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,034.37 : 193,551.56 = 75,807.65 : x
  2. Step 2: Convert to fraction form
    129,034.37/193,551.56 = 75,807.65/x
  3. Step 3: Cross multiply
    129,034.37x = 193,551.56 × 75,807.65
  4. Step 4: Simplify right side
    129,034.37x = 14,672,688,917.43
  5. Step 5: Solve for x
    x = 14,672,688,917.43/129,034.37
  6. Step 6: Final answer
    x = 113,711.48

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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.