Home / 127,224.10-190,836.15-82,317.70

Finding the Fourth Proportional to 127,224.10, 190,836.15 and 82,317.70

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Solution

The fourth proportional to 127,224.10, 190,836.15 and 82,317.70 is: 123,476.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,224.10 : 190,836.15 = 82,317.70 : x
  2. Step 2: Convert to fraction form
    127,224.10/190,836.15 = 82,317.70/x
  3. Step 3: Cross multiply
    127,224.10x = 190,836.15 × 82,317.70
  4. Step 4: Simplify right side
    127,224.10x = 15,709,192,944.86
  5. Step 5: Solve for x
    x = 15,709,192,944.86/127,224.10
  6. Step 6: Final answer
    x = 123,476.55

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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.