Home / 127,860.10-191,810.40-43,628.20

Finding the Fourth Proportional to 127,860.10, 191,810.40 and 43,628.20

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Solution

The fourth proportional to 127,860.10, 191,810.40 and 43,628.20 is: 65,449.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,860.10 : 191,810.40 = 43,628.20 : x
  2. Step 2: Convert to fraction form
    127,860.10/191,810.40 = 43,628.20/x
  3. Step 3: Cross multiply
    127,860.10x = 191,810.40 × 43,628.20
  4. Step 4: Simplify right side
    127,860.10x = 8,368,342,493.28
  5. Step 5: Solve for x
    x = 8,368,342,493.28/127,860.10
  6. Step 6: Final answer
    x = 65,449.21

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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.