Home / 139,664.79-192,731.67-76,002.84

Finding the Fourth Proportional to 139,664.79, 192,731.67 and 76,002.84

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Solution

The fourth proportional to 139,664.79, 192,731.67 and 76,002.84 is: 104,880.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,664.79 : 192,731.67 = 76,002.84 : x
  2. Step 2: Convert to fraction form
    139,664.79/192,731.67 = 76,002.84/x
  3. Step 3: Cross multiply
    139,664.79x = 192,731.67 × 76,002.84
  4. Step 4: Simplify right side
    139,664.79x = 14,648,154,277.94
  5. Step 5: Solve for x
    x = 14,648,154,277.94/139,664.79
  6. Step 6: Final answer
    x = 104,880.80

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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.