Home / 135,171.34-186,520.17-74,733.82

Finding the Fourth Proportional to 135,171.34, 186,520.17 and 74,733.82

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Solution

The fourth proportional to 135,171.34, 186,520.17 and 74,733.82 is: 103,123.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,171.34 : 186,520.17 = 74,733.82 : x
  2. Step 2: Convert to fraction form
    135,171.34/186,520.17 = 74,733.82/x
  3. Step 3: Cross multiply
    135,171.34x = 186,520.17 × 74,733.82
  4. Step 4: Simplify right side
    135,171.34x = 13,939,364,811.15
  5. Step 5: Solve for x
    x = 13,939,364,811.15/135,171.34
  6. Step 6: Final answer
    x = 103,123.67

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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.