Home / 127,169.10-190,425.60-100,925.10

Finding the Fourth Proportional to 127,169.10, 190,425.60 and 100,925.10

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Solution

The fourth proportional to 127,169.10, 190,425.60 and 100,925.10 is: 151,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,169.10 : 190,425.60 = 100,925.10 : x
  2. Step 2: Convert to fraction form
    127,169.10/190,425.60 = 100,925.10/x
  3. Step 3: Cross multiply
    127,169.10x = 190,425.60 × 100,925.10
  4. Step 4: Simplify right side
    127,169.10x = 19,218,722,722.56
  5. Step 5: Solve for x
    x = 19,218,722,722.56/127,169.10
  6. Step 6: Final answer
    x = 151,127.30

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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.