Home / 135,881.99-187,521.86-75,453.64

Finding the Fourth Proportional to 135,881.99, 187,521.86 and 75,453.64

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Solution

The fourth proportional to 135,881.99, 187,521.86 and 75,453.64 is: 104,128.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,881.99 : 187,521.86 = 75,453.64 : x
  2. Step 2: Convert to fraction form
    135,881.99/187,521.86 = 75,453.64/x
  3. Step 3: Cross multiply
    135,881.99x = 187,521.86 × 75,453.64
  4. Step 4: Simplify right side
    135,881.99x = 14,149,206,539.30
  5. Step 5: Solve for x
    x = 14,149,206,539.30/135,881.99
  6. Step 6: Final answer
    x = 104,128.64

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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.