Home / 135,537.98-187,043.72-75,109.34

Finding the Fourth Proportional to 135,537.98, 187,043.72 and 75,109.34

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Solution

The fourth proportional to 135,537.98, 187,043.72 and 75,109.34 is: 103,651.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,537.98 : 187,043.72 = 75,109.34 : x
  2. Step 2: Convert to fraction form
    135,537.98/187,043.72 = 75,109.34/x
  3. Step 3: Cross multiply
    135,537.98x = 187,043.72 × 75,109.34
  4. Step 4: Simplify right side
    135,537.98x = 14,048,730,452.41
  5. Step 5: Solve for x
    x = 14,048,730,452.41/135,537.98
  6. Step 6: Final answer
    x = 103,651.62

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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.