Home / 136,167.06-187,778.60-90,846.88

Finding the Fourth Proportional to 136,167.06, 187,778.60 and 90,846.88

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Solution

The fourth proportional to 136,167.06, 187,778.60 and 90,846.88 is: 125,280.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,167.06 : 187,778.60 = 90,846.88 : x
  2. Step 2: Convert to fraction form
    136,167.06/187,778.60 = 90,846.88/x
  3. Step 3: Cross multiply
    136,167.06x = 187,778.60 × 90,846.88
  4. Step 4: Simplify right side
    136,167.06x = 17,059,099,940.77
  5. Step 5: Solve for x
    x = 17,059,099,940.77/136,167.06
  6. Step 6: Final answer
    x = 125,280.67

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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.