Home / 135,818.55-187,420.50-82,133.16

Finding the Fourth Proportional to 135,818.55, 187,420.50 and 82,133.16

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Solution

The fourth proportional to 135,818.55, 187,420.50 and 82,133.16 is: 113,338.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,818.55 : 187,420.50 = 82,133.16 : x
  2. Step 2: Convert to fraction form
    135,818.55/187,420.50 = 82,133.16/x
  3. Step 3: Cross multiply
    135,818.55x = 187,420.50 × 82,133.16
  4. Step 4: Simplify right side
    135,818.55x = 15,393,437,913.78
  5. Step 5: Solve for x
    x = 15,393,437,913.78/135,818.55
  6. Step 6: Final answer
    x = 113,338.26

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1.5x scale

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.