Home / 135,630.77-187,169.54-75,201.44

Finding the Fourth Proportional to 135,630.77, 187,169.54 and 75,201.44

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Solution

The fourth proportional to 135,630.77, 187,169.54 and 75,201.44 is: 103,777.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,630.77 : 187,169.54 = 75,201.44 : x
  2. Step 2: Convert to fraction form
    135,630.77/187,169.54 = 75,201.44/x
  3. Step 3: Cross multiply
    135,630.77x = 187,169.54 × 75,201.44
  4. Step 4: Simplify right side
    135,630.77x = 14,075,417,620.28
  5. Step 5: Solve for x
    x = 14,075,417,620.28/135,630.77
  6. Step 6: Final answer
    x = 103,777.47

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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.