Home / 135,558.90-187,071.30-75,133.44

Finding the Fourth Proportional to 135,558.90, 187,071.30 and 75,133.44

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Solution

The fourth proportional to 135,558.90, 187,071.30 and 75,133.44 is: 103,684.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,558.90 : 187,071.30 = 75,133.44 : x
  2. Step 2: Convert to fraction form
    135,558.90/187,071.30 = 75,133.44/x
  3. Step 3: Cross multiply
    135,558.90x = 187,071.30 × 75,133.44
  4. Step 4: Simplify right side
    135,558.90x = 14,055,310,294.27
  5. Step 5: Solve for x
    x = 14,055,310,294.27/135,558.90
  6. Step 6: Final answer
    x = 103,684.16

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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.