Home / 135,680.76-187,250.94-75,270.86

Finding the Fourth Proportional to 135,680.76, 187,250.94 and 75,270.86

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Solution

The fourth proportional to 135,680.76, 187,250.94 and 75,270.86 is: 103,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,680.76 : 187,250.94 = 75,270.86 : x
  2. Step 2: Convert to fraction form
    135,680.76/187,250.94 = 75,270.86/x
  3. Step 3: Cross multiply
    135,680.76x = 187,250.94 × 75,270.86
  4. Step 4: Simplify right side
    135,680.76x = 14,094,538,353.35
  5. Step 5: Solve for x
    x = 14,094,538,353.35/135,680.76
  6. Step 6: Final answer
    x = 103,880.15

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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.