Home / 135,730.45-187,309.15-75,305.06

Finding the Fourth Proportional to 135,730.45, 187,309.15 and 75,305.06

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Solution

The fourth proportional to 135,730.45, 187,309.15 and 75,305.06 is: 103,921.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,730.45 : 187,309.15 = 75,305.06 : x
  2. Step 2: Convert to fraction form
    135,730.45/187,309.15 = 75,305.06/x
  3. Step 3: Cross multiply
    135,730.45x = 187,309.15 × 75,305.06
  4. Step 4: Simplify right side
    135,730.45x = 14,105,325,654.49
  5. Step 5: Solve for x
    x = 14,105,325,654.49/135,730.45
  6. Step 6: Final answer
    x = 103,921.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.