Home / 135,623.16-203,406.95-51,354.25

Finding the Fourth Proportional to 135,623.16, 203,406.95 and 51,354.25

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Solution

The fourth proportional to 135,623.16, 203,406.95 and 51,354.25 is: 77,020.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,623.16 : 203,406.95 = 51,354.25 : x
  2. Step 2: Convert to fraction form
    135,623.16/203,406.95 = 51,354.25/x
  3. Step 3: Cross multiply
    135,623.16x = 203,406.95 × 51,354.25
  4. Step 4: Simplify right side
    135,623.16x = 10,445,811,837.20
  5. Step 5: Solve for x
    x = 10,445,811,837.20/135,623.16
  6. Step 6: Final answer
    x = 77,020.86

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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.