Home / 127,121.09-190,655.51-120,798.23

Finding the Fourth Proportional to 127,121.09, 190,655.51 and 120,798.23

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Solution

The fourth proportional to 127,121.09, 190,655.51 and 120,798.23 is: 181,172.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,121.09 : 190,655.51 = 120,798.23 : x
  2. Step 2: Convert to fraction form
    127,121.09/190,655.51 = 120,798.23/x
  3. Step 3: Cross multiply
    127,121.09x = 190,655.51 × 120,798.23
  4. Step 4: Simplify right side
    127,121.09x = 23,030,846,590.48
  5. Step 5: Solve for x
    x = 23,030,846,590.48/127,121.09
  6. Step 6: Final answer
    x = 181,172.51

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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.