Home / 135,076.47-202,433.60-105,126.88

Finding the Fourth Proportional to 135,076.47, 202,433.60 and 105,126.88

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Solution

The fourth proportional to 135,076.47, 202,433.60 and 105,126.88 is: 157,549.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,076.47 : 202,433.60 = 105,126.88 : x
  2. Step 2: Convert to fraction form
    135,076.47/202,433.60 = 105,126.88/x
  3. Step 3: Cross multiply
    135,076.47x = 202,433.60 × 105,126.88
  4. Step 4: Simplify right side
    135,076.47x = 21,281,211,237.37
  5. Step 5: Solve for x
    x = 21,281,211,237.37/135,076.47
  6. Step 6: Final answer
    x = 157,549.36

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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.