Home / 189,557.55-261,611.78-108,988.47

Finding the Fourth Proportional to 189,557.55, 261,611.78 and 108,988.47

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Solution

The fourth proportional to 189,557.55, 261,611.78 and 108,988.47 is: 150,416.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,557.55 : 261,611.78 = 108,988.47 : x
  2. Step 2: Convert to fraction form
    189,557.55/261,611.78 = 108,988.47/x
  3. Step 3: Cross multiply
    189,557.55x = 261,611.78 × 108,988.47
  4. Step 4: Simplify right side
    189,557.55x = 28,512,667,091.23
  5. Step 5: Solve for x
    x = 28,512,667,091.23/189,557.55
  6. Step 6: Final answer
    x = 150,416.94

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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.