Home / 135,878.85-187,506.56-75,453.34

Finding the Fourth Proportional to 135,878.85, 187,506.56 and 75,453.34

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Solution

The fourth proportional to 135,878.85, 187,506.56 and 75,453.34 is: 104,122.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,878.85 : 187,506.56 = 75,453.34 : x
  2. Step 2: Convert to fraction form
    135,878.85/187,506.56 = 75,453.34/x
  3. Step 3: Cross multiply
    135,878.85x = 187,506.56 × 75,453.34
  4. Step 4: Simplify right side
    135,878.85x = 14,147,996,223.91
  5. Step 5: Solve for x
    x = 14,147,996,223.91/135,878.85
  6. Step 6: Final answer
    x = 104,122.14

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1.5x scale

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.