Home / 100,913.26-139,260.34-58,496.38

Finding the Fourth Proportional to 100,913.26, 139,260.34 and 58,496.38

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Solution

The fourth proportional to 100,913.26, 139,260.34 and 58,496.38 is: 80,725.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,913.26 : 139,260.34 = 58,496.38 : x
  2. Step 2: Convert to fraction form
    100,913.26/139,260.34 = 58,496.38/x
  3. Step 3: Cross multiply
    100,913.26x = 139,260.34 × 58,496.38
  4. Step 4: Simplify right side
    100,913.26x = 8,146,225,767.57
  5. Step 5: Solve for x
    x = 8,146,225,767.57/100,913.26
  6. Step 6: Final answer
    x = 80,725.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.