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Finding the Fourth Proportional to 139,263.92, 192,179.04 and 75,600.32

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Solution

The fourth proportional to 139,263.92, 192,179.04 and 75,600.32 is: 104,325.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,263.92 : 192,179.04 = 75,600.32 : x
  2. Step 2: Convert to fraction form
    139,263.92/192,179.04 = 75,600.32/x
  3. Step 3: Cross multiply
    139,263.92x = 192,179.04 × 75,600.32
  4. Step 4: Simplify right side
    139,263.92x = 14,528,796,921.29
  5. Step 5: Solve for x
    x = 14,528,796,921.29/139,263.92
  6. Step 6: Final answer
    x = 104,325.64

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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.