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Finding the Fourth Proportional to 135,516.98, 187,010.98 and 75,087.41

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Solution

The fourth proportional to 135,516.98, 187,010.98 and 75,087.41 is: 103,619.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,516.98 : 187,010.98 = 75,087.41 : x
  2. Step 2: Convert to fraction form
    135,516.98/187,010.98 = 75,087.41/x
  3. Step 3: Cross multiply
    135,516.98x = 187,010.98 × 75,087.41
  4. Step 4: Simplify right side
    135,516.98x = 14,042,169,006.99
  5. Step 5: Solve for x
    x = 14,042,169,006.99/135,516.98
  6. Step 6: Final answer
    x = 103,619.26

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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.