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Finding the Fourth Proportional to 139,466.04, 192,464.64 and 75,803.86

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Solution

The fourth proportional to 139,466.04, 192,464.64 and 75,803.86 is: 104,610.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,466.04 : 192,464.64 = 75,803.86 : x
  2. Step 2: Convert to fraction form
    139,466.04/192,464.64 = 75,803.86/x
  3. Step 3: Cross multiply
    139,466.04x = 192,464.64 × 75,803.86
  4. Step 4: Simplify right side
    139,466.04x = 14,589,562,625.51
  5. Step 5: Solve for x
    x = 14,589,562,625.51/139,466.04
  6. Step 6: Final answer
    x = 104,610.14

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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.