Home / 127,540.30-191,302.35-43,300.30

Finding the Fourth Proportional to 127,540.30, 191,302.35 and 43,300.30

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Solution

The fourth proportional to 127,540.30, 191,302.35 and 43,300.30 is: 64,947.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,540.30 : 191,302.35 = 43,300.30 : x
  2. Step 2: Convert to fraction form
    127,540.30/191,302.35 = 43,300.30/x
  3. Step 3: Cross multiply
    127,540.30x = 191,302.35 × 43,300.30
  4. Step 4: Simplify right side
    127,540.30x = 8,283,449,145.71
  5. Step 5: Solve for x
    x = 8,283,449,145.71/127,540.30
  6. Step 6: Final answer
    x = 64,947.70

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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.