Home / 135,778.01-187,364.64-75,344.82

Finding the Fourth Proportional to 135,778.01, 187,364.64 and 75,344.82

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Solution

The fourth proportional to 135,778.01, 187,364.64 and 75,344.82 is: 103,970.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,778.01 : 187,364.64 = 75,344.82 : x
  2. Step 2: Convert to fraction form
    135,778.01/187,364.64 = 75,344.82/x
  3. Step 3: Cross multiply
    135,778.01x = 187,364.64 × 75,344.82
  4. Step 4: Simplify right side
    135,778.01x = 14,116,954,655.09
  5. Step 5: Solve for x
    x = 14,116,954,655.09/135,778.01
  6. Step 6: Final answer
    x = 103,970.85

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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.