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Finding the Fourth Proportional to 139,564.58, 192,597 and 75,900.92

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Solution

The fourth proportional to 139,564.58, 192,597 and 75,900.92 is: 104,742.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,564.58 : 192,597 = 75,900.92 : x
  2. Step 2: Convert to fraction form
    139,564.58/192,597 = 75,900.92/x
  3. Step 3: Cross multiply
    139,564.58x = 192,597 × 75,900.92
  4. Step 4: Simplify right side
    139,564.58x = 14,618,289,489.24
  5. Step 5: Solve for x
    x = 14,618,289,489.24/139,564.58
  6. Step 6: Final answer
    x = 104,742.12

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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.