Home / 190,213.12-262,578.88-125,721.20

Finding the Fourth Proportional to 190,213.12, 262,578.88 and 125,721.20

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Solution

The fourth proportional to 190,213.12, 262,578.88 and 125,721.20 is: 173,551.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,213.12 : 262,578.88 = 125,721.20 : x
  2. Step 2: Convert to fraction form
    190,213.12/262,578.88 = 125,721.20/x
  3. Step 3: Cross multiply
    190,213.12x = 262,578.88 × 125,721.20
  4. Step 4: Simplify right side
    190,213.12x = 33,011,731,888.26
  5. Step 5: Solve for x
    x = 33,011,731,888.26/190,213.12
  6. Step 6: Final answer
    x = 173,551.29

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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.