Home / 135,578.14-187,104.09-75,150.07

Finding the Fourth Proportional to 135,578.14, 187,104.09 and 75,150.07

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Solution

The fourth proportional to 135,578.14, 187,104.09 and 75,150.07 is: 103,710.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,578.14 : 187,104.09 = 75,150.07 : x
  2. Step 2: Convert to fraction form
    135,578.14/187,104.09 = 75,150.07/x
  3. Step 3: Cross multiply
    135,578.14x = 187,104.09 × 75,150.07
  4. Step 4: Simplify right side
    135,578.14x = 14,060,885,460.79
  5. Step 5: Solve for x
    x = 14,060,885,460.79/135,578.14
  6. Step 6: Final answer
    x = 103,710.56

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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.