Home / 109,553.80-151,185-69,284.92

Finding the Fourth Proportional to 109,553.80, 151,185 and 69,284.92

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Solution

The fourth proportional to 109,553.80, 151,185 and 69,284.92 is: 95,613.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,553.80 : 151,185 = 69,284.92 : x
  2. Step 2: Convert to fraction form
    109,553.80/151,185 = 69,284.92/x
  3. Step 3: Cross multiply
    109,553.80x = 151,185 × 69,284.92
  4. Step 4: Simplify right side
    109,553.80x = 10,474,840,630.20
  5. Step 5: Solve for x
    x = 10,474,840,630.20/109,553.80
  6. Step 6: Final answer
    x = 95,613.67

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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.