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Finding the Fourth Proportional to 134,174.58, 185,163.10 and 76,813.68

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Solution

The fourth proportional to 134,174.58, 185,163.10 and 76,813.68 is: 106,004.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,174.58 : 185,163.10 = 76,813.68 : x
  2. Step 2: Convert to fraction form
    134,174.58/185,163.10 = 76,813.68/x
  3. Step 3: Cross multiply
    134,174.58x = 185,163.10 × 76,813.68
  4. Step 4: Simplify right side
    134,174.58x = 14,223,059,111.21
  5. Step 5: Solve for x
    x = 14,223,059,111.21/134,174.58
  6. Step 6: Final answer
    x = 106,004.13

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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.