Home / 135,900.46-187,477.23-88,168.78

Finding the Fourth Proportional to 135,900.46, 187,477.23 and 88,168.78

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Solution

The fourth proportional to 135,900.46, 187,477.23 and 88,168.78 is: 121,630.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,900.46 : 187,477.23 = 88,168.78 : x
  2. Step 2: Convert to fraction form
    135,900.46/187,477.23 = 88,168.78/x
  3. Step 3: Cross multiply
    135,900.46x = 187,477.23 × 88,168.78
  4. Step 4: Simplify right side
    135,900.46x = 16,529,638,646.88
  5. Step 5: Solve for x
    x = 16,529,638,646.88/135,900.46
  6. Step 6: Final answer
    x = 121,630.48

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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.