Home / 135,806.90-187,411.68-75,377.36

Finding the Fourth Proportional to 135,806.90, 187,411.68 and 75,377.36

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Solution

The fourth proportional to 135,806.90, 187,411.68 and 75,377.36 is: 104,019.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,806.90 : 187,411.68 = 75,377.36 : x
  2. Step 2: Convert to fraction form
    135,806.90/187,411.68 = 75,377.36/x
  3. Step 3: Cross multiply
    135,806.90x = 187,411.68 × 75,377.36
  4. Step 4: Simplify right side
    135,806.90x = 14,126,598,140.09
  5. Step 5: Solve for x
    x = 14,126,598,140.09/135,806.90
  6. Step 6: Final answer
    x = 104,019.74

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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.