Home / 135,077.47-202,435.09-105,127.88

Finding the Fourth Proportional to 135,077.47, 202,435.09 and 105,127.88

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Solution

The fourth proportional to 135,077.47, 202,435.09 and 105,127.88 is: 157,550.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,077.47 : 202,435.09 = 105,127.88 : x
  2. Step 2: Convert to fraction form
    135,077.47/202,435.09 = 105,127.88/x
  3. Step 3: Cross multiply
    135,077.47x = 202,435.09 × 105,127.88
  4. Step 4: Simplify right side
    135,077.47x = 21,281,571,849.31
  5. Step 5: Solve for x
    x = 21,281,571,849.31/135,077.47
  6. Step 6: Final answer
    x = 157,550.86

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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.