Home / 127,113.36-175,380.80-100,172.24

Finding the Fourth Proportional to 127,113.36, 175,380.80 and 100,172.24

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Solution

The fourth proportional to 127,113.36, 175,380.80 and 100,172.24 is: 138,209.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,113.36 : 175,380.80 = 100,172.24 : x
  2. Step 2: Convert to fraction form
    127,113.36/175,380.80 = 100,172.24/x
  3. Step 3: Cross multiply
    127,113.36x = 175,380.80 × 100,172.24
  4. Step 4: Simplify right side
    127,113.36x = 17,568,287,588.99
  5. Step 5: Solve for x
    x = 17,568,287,588.99/127,113.36
  6. Step 6: Final answer
    x = 138,209.61

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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.