Home / 139,914.19-193,085.67-76,256.11

Finding the Fourth Proportional to 139,914.19, 193,085.67 and 76,256.11

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Solution

The fourth proportional to 139,914.19, 193,085.67 and 76,256.11 is: 105,235.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,914.19 : 193,085.67 = 76,256.11 : x
  2. Step 2: Convert to fraction form
    139,914.19/193,085.67 = 76,256.11/x
  3. Step 3: Cross multiply
    139,914.19x = 193,085.67 × 76,256.11
  4. Step 4: Simplify right side
    139,914.19x = 14,723,962,090.94
  5. Step 5: Solve for x
    x = 14,723,962,090.94/139,914.19
  6. Step 6: Final answer
    x = 105,235.66

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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.