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Finding the Fourth Proportional to 135,755.69, 187,339.98 and 75,325.04

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Solution

The fourth proportional to 135,755.69, 187,339.98 and 75,325.04 is: 103,946.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,755.69 : 187,339.98 = 75,325.04 : x
  2. Step 2: Convert to fraction form
    135,755.69/187,339.98 = 75,325.04/x
  3. Step 3: Cross multiply
    135,755.69x = 187,339.98 × 75,325.04
  4. Step 4: Simplify right side
    135,755.69x = 14,111,390,550.40
  5. Step 5: Solve for x
    x = 14,111,390,550.40/135,755.69
  6. Step 6: Final answer
    x = 103,946.95

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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.