Home / 135,576.64-187,102.02-75,148.57

Finding the Fourth Proportional to 135,576.64, 187,102.02 and 75,148.57

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Solution

The fourth proportional to 135,576.64, 187,102.02 and 75,148.57 is: 103,708.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,576.64 : 187,102.02 = 75,148.57 : x
  2. Step 2: Convert to fraction form
    135,576.64/187,102.02 = 75,148.57/x
  3. Step 3: Cross multiply
    135,576.64x = 187,102.02 × 75,148.57
  4. Step 4: Simplify right side
    135,576.64x = 14,060,449,247.11
  5. Step 5: Solve for x
    x = 14,060,449,247.11/135,576.64
  6. Step 6: Final answer
    x = 103,708.49

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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.