Home / 127,806.20-191,709.30-34,321.40

Finding the Fourth Proportional to 127,806.20, 191,709.30 and 34,321.40

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Solution

The fourth proportional to 127,806.20, 191,709.30 and 34,321.40 is: 51,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,806.20 : 191,709.30 = 34,321.40 : x
  2. Step 2: Convert to fraction form
    127,806.20/191,709.30 = 34,321.40/x
  3. Step 3: Cross multiply
    127,806.20x = 191,709.30 × 34,321.40
  4. Step 4: Simplify right side
    127,806.20x = 6,579,731,569.02
  5. Step 5: Solve for x
    x = 6,579,731,569.02/127,806.20
  6. Step 6: Final answer
    x = 51,482.10

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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.