Home / 139,470.36-192,468.38-75,808.50

Finding the Fourth Proportional to 139,470.36, 192,468.38 and 75,808.50

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Solution

The fourth proportional to 139,470.36, 192,468.38 and 75,808.50 is: 104,615.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,470.36 : 192,468.38 = 75,808.50 : x
  2. Step 2: Convert to fraction form
    139,470.36/192,468.38 = 75,808.50/x
  3. Step 3: Cross multiply
    139,470.36x = 192,468.38 × 75,808.50
  4. Step 4: Simplify right side
    139,470.36x = 14,590,738,806.19
  5. Step 5: Solve for x
    x = 14,590,738,806.19/139,470.36
  6. Step 6: Final answer
    x = 104,615.34

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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.