Home / 99,785.28-137,571.36-82,725.12

Finding the Fourth Proportional to 99,785.28, 137,571.36 and 82,725.12

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Solution

The fourth proportional to 99,785.28, 137,571.36 and 82,725.12 is: 114,050.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,785.28 : 137,571.36 = 82,725.12 : x
  2. Step 2: Convert to fraction form
    99,785.28/137,571.36 = 82,725.12/x
  3. Step 3: Cross multiply
    99,785.28x = 137,571.36 × 82,725.12
  4. Step 4: Simplify right side
    99,785.28x = 11,380,607,264.56
  5. Step 5: Solve for x
    x = 11,380,607,264.56/99,785.28
  6. Step 6: Final answer
    x = 114,050.96

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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.