Home / 135,169.40-186,525.74-74,735.30

Finding the Fourth Proportional to 135,169.40, 186,525.74 and 74,735.30

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Solution

The fourth proportional to 135,169.40, 186,525.74 and 74,735.30 is: 103,130.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,169.40 : 186,525.74 = 74,735.30 : x
  2. Step 2: Convert to fraction form
    135,169.40/186,525.74 = 74,735.30/x
  3. Step 3: Cross multiply
    135,169.40x = 186,525.74 × 74,735.30
  4. Step 4: Simplify right side
    135,169.40x = 13,940,057,136.62
  5. Step 5: Solve for x
    x = 13,940,057,136.62/135,169.40
  6. Step 6: Final answer
    x = 103,130.27

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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.