Home / 135,605.14-187,146.15-75,194.73

Finding the Fourth Proportional to 135,605.14, 187,146.15 and 75,194.73

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Solution

The fourth proportional to 135,605.14, 187,146.15 and 75,194.73 is: 103,774.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,605.14 : 187,146.15 = 75,194.73 : x
  2. Step 2: Convert to fraction form
    135,605.14/187,146.15 = 75,194.73/x
  3. Step 3: Cross multiply
    135,605.14x = 187,146.15 × 75,194.73
  4. Step 4: Simplify right side
    135,605.14x = 14,072,403,937.81
  5. Step 5: Solve for x
    x = 14,072,403,937.81/135,605.14
  6. Step 6: Final answer
    x = 103,774.86

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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.