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Finding the Fourth Proportional to 139,463.04, 192,460.50 and 75,800.85

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Solution

The fourth proportional to 139,463.04, 192,460.50 and 75,800.85 is: 104,605.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,463.04 : 192,460.50 = 75,800.85 : x
  2. Step 2: Convert to fraction form
    139,463.04/192,460.50 = 75,800.85/x
  3. Step 3: Cross multiply
    139,463.04x = 192,460.50 × 75,800.85
  4. Step 4: Simplify right side
    139,463.04x = 14,588,669,491.43
  5. Step 5: Solve for x
    x = 14,588,669,491.43/139,463.04
  6. Step 6: Final answer
    x = 104,605.99

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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.