Home / 139,346.35-192,296.90-75,684.60

Finding the Fourth Proportional to 139,346.35, 192,296.90 and 75,684.60

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Solution

The fourth proportional to 139,346.35, 192,296.90 and 75,684.60 is: 104,444.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,346.35 : 192,296.90 = 75,684.60 : x
  2. Step 2: Convert to fraction form
    139,346.35/192,296.90 = 75,684.60/x
  3. Step 3: Cross multiply
    139,346.35x = 192,296.90 × 75,684.60
  4. Step 4: Simplify right side
    139,346.35x = 14,553,914,146.95
  5. Step 5: Solve for x
    x = 14,553,914,146.95/139,346.35
  6. Step 6: Final answer
    x = 104,444.17

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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.