Home / 135,935.92-187,592.80-79,336.32

Finding the Fourth Proportional to 135,935.92, 187,592.80 and 79,336.32

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Solution

The fourth proportional to 135,935.92, 187,592.80 and 79,336.32 is: 109,484.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,935.92 : 187,592.80 = 79,336.32 : x
  2. Step 2: Convert to fraction form
    135,935.92/187,592.80 = 79,336.32/x
  3. Step 3: Cross multiply
    135,935.92x = 187,592.80 × 79,336.32
  4. Step 4: Simplify right side
    135,935.92x = 14,882,922,410.50
  5. Step 5: Solve for x
    x = 14,882,922,410.50/135,935.92
  6. Step 6: Final answer
    x = 109,484.84

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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.