Home / 127,546.10-191,339.40-43,314.20

Finding the Fourth Proportional to 127,546.10, 191,339.40 and 43,314.20

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Solution

The fourth proportional to 127,546.10, 191,339.40 and 43,314.20 is: 64,978.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,546.10 : 191,339.40 = 43,314.20 : x
  2. Step 2: Convert to fraction form
    127,546.10/191,339.40 = 43,314.20/x
  3. Step 3: Cross multiply
    127,546.10x = 191,339.40 × 43,314.20
  4. Step 4: Simplify right side
    127,546.10x = 8,287,713,039.48
  5. Step 5: Solve for x
    x = 8,287,713,039.48/127,546.10
  6. Step 6: Final answer
    x = 64,978.18

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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.