Home / 135,770.32-187,385.16-76,173.52

Finding the Fourth Proportional to 135,770.32, 187,385.16 and 76,173.52

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Solution

The fourth proportional to 135,770.32, 187,385.16 and 76,173.52 is: 105,131.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,770.32 : 187,385.16 = 76,173.52 : x
  2. Step 2: Convert to fraction form
    135,770.32/187,385.16 = 76,173.52/x
  3. Step 3: Cross multiply
    135,770.32x = 187,385.16 × 76,173.52
  4. Step 4: Simplify right side
    135,770.32x = 14,273,787,232.96
  5. Step 5: Solve for x
    x = 14,273,787,232.96/135,770.32
  6. Step 6: Final answer
    x = 105,131.87

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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.