Home / 135,619.58-187,166.10-75,209.18

Finding the Fourth Proportional to 135,619.58, 187,166.10 and 75,209.18

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Solution

The fourth proportional to 135,619.58, 187,166.10 and 75,209.18 is: 103,794.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,619.58 : 187,166.10 = 75,209.18 : x
  2. Step 2: Convert to fraction form
    135,619.58/187,166.10 = 75,209.18/x
  3. Step 3: Cross multiply
    135,619.58x = 187,166.10 × 75,209.18
  4. Step 4: Simplify right side
    135,619.58x = 14,076,607,968.97
  5. Step 5: Solve for x
    x = 14,076,607,968.97/135,619.58
  6. Step 6: Final answer
    x = 103,794.81

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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.