Home / 135,618.66-187,164.78-75,208.26

Finding the Fourth Proportional to 135,618.66, 187,164.78 and 75,208.26

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Solution

The fourth proportional to 135,618.66, 187,164.78 and 75,208.26 is: 103,793.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,618.66 : 187,164.78 = 75,208.26 : x
  2. Step 2: Convert to fraction form
    135,618.66/187,164.78 = 75,208.26/x
  3. Step 3: Cross multiply
    135,618.66x = 187,164.78 × 75,208.26
  4. Step 4: Simplify right side
    135,618.66x = 14,076,337,437.08
  5. Step 5: Solve for x
    x = 14,076,337,437.08/135,618.66
  6. Step 6: Final answer
    x = 103,793.52

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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.