Home / 127,922.10-191,883.15-81,266.10

Finding the Fourth Proportional to 127,922.10, 191,883.15 and 81,266.10

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Solution

The fourth proportional to 127,922.10, 191,883.15 and 81,266.10 is: 121,899.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,922.10 : 191,883.15 = 81,266.10 : x
  2. Step 2: Convert to fraction form
    127,922.10/191,883.15 = 81,266.10/x
  3. Step 3: Cross multiply
    127,922.10x = 191,883.15 × 81,266.10
  4. Step 4: Simplify right side
    127,922.10x = 15,593,595,256.22
  5. Step 5: Solve for x
    x = 15,593,595,256.22/127,922.10
  6. Step 6: Final answer
    x = 121,899.15

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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.