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Finding the Fourth Proportional to 139,464.52, 192,463 and 75,802.32

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Solution

The fourth proportional to 139,464.52, 192,463 and 75,802.32 is: 104,608.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,464.52 : 192,463 = 75,802.32 : x
  2. Step 2: Convert to fraction form
    139,464.52/192,463 = 75,802.32/x
  3. Step 3: Cross multiply
    139,464.52x = 192,463 × 75,802.32
  4. Step 4: Simplify right side
    139,464.52x = 14,589,141,914.16
  5. Step 5: Solve for x
    x = 14,589,141,914.16/139,464.52
  6. Step 6: Final answer
    x = 104,608.27

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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.