Home / 139,176.77-192,061.54-84,709.19

Finding the Fourth Proportional to 139,176.77, 192,061.54 and 84,709.19

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Solution

The fourth proportional to 139,176.77, 192,061.54 and 84,709.19 is: 116,897.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,176.77 : 192,061.54 = 84,709.19 : x
  2. Step 2: Convert to fraction form
    139,176.77/192,061.54 = 84,709.19/x
  3. Step 3: Cross multiply
    139,176.77x = 192,061.54 × 84,709.19
  4. Step 4: Simplify right side
    139,176.77x = 16,269,378,188.72
  5. Step 5: Solve for x
    x = 16,269,378,188.72/139,176.77
  6. Step 6: Final answer
    x = 116,897.23

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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.