Home / 135,701.22-187,290.10-75,291.30

Finding the Fourth Proportional to 135,701.22, 187,290.10 and 75,291.30

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Solution

The fourth proportional to 135,701.22, 187,290.10 and 75,291.30 is: 103,914.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,701.22 : 187,290.10 = 75,291.30 : x
  2. Step 2: Convert to fraction form
    135,701.22/187,290.10 = 75,291.30/x
  3. Step 3: Cross multiply
    135,701.22x = 187,290.10 × 75,291.30
  4. Step 4: Simplify right side
    135,701.22x = 14,101,315,106.13
  5. Step 5: Solve for x
    x = 14,101,315,106.13/135,701.22
  6. Step 6: Final answer
    x = 103,914.43

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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.