Home / 135,584.25-187,108.13-74,336.20

Finding the Fourth Proportional to 135,584.25, 187,108.13 and 74,336.20

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Solution

The fourth proportional to 135,584.25, 187,108.13 and 74,336.20 is: 102,584.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,584.25 : 187,108.13 = 74,336.20 : x
  2. Step 2: Convert to fraction form
    135,584.25/187,108.13 = 74,336.20/x
  3. Step 3: Cross multiply
    135,584.25x = 187,108.13 × 74,336.20
  4. Step 4: Simplify right side
    135,584.25x = 13,908,907,091.38
  5. Step 5: Solve for x
    x = 13,908,907,091.38/135,584.25
  6. Step 6: Final answer
    x = 102,584.98

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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.