Home / 139,983.46-193,180.85-86,303.95

Finding the Fourth Proportional to 139,983.46, 193,180.85 and 86,303.95

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Solution

The fourth proportional to 139,983.46, 193,180.85 and 86,303.95 is: 119,101.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,983.46 : 193,180.85 = 86,303.95 : x
  2. Step 2: Convert to fraction form
    139,983.46/193,180.85 = 86,303.95/x
  3. Step 3: Cross multiply
    139,983.46x = 193,180.85 × 86,303.95
  4. Step 4: Simplify right side
    139,983.46x = 16,672,269,828.53
  5. Step 5: Solve for x
    x = 16,672,269,828.53/139,983.46
  6. Step 6: Final answer
    x = 119,101.71

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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.