Home / 135,633.39-187,176.32-75,206.58

Finding the Fourth Proportional to 135,633.39, 187,176.32 and 75,206.58

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Solution

The fourth proportional to 135,633.39, 187,176.32 and 75,206.58 is: 103,786.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,633.39 : 187,176.32 = 75,206.58 : x
  2. Step 2: Convert to fraction form
    135,633.39/187,176.32 = 75,206.58/x
  3. Step 3: Cross multiply
    135,633.39x = 187,176.32 × 75,206.58
  4. Step 4: Simplify right side
    135,633.39x = 14,076,890,088.27
  5. Step 5: Solve for x
    x = 14,076,890,088.27/135,633.39
  6. Step 6: Final answer
    x = 103,786.32

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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.